|b[The_Equatorie_of_the_Planetis,_from_Peterhouse_MS._75.I,
|b_ed._Derek_J._Price,_Cambridge:_CUP,_1955,_pp._18-44.]



|p18


 |r1_[f.71v] In the name of god pitos & merciable seide [leyk]=e= the largere =t= thow makest
 |r2 this  instrument / the largere ben thi chef deuisiouns / the largere =t= ben tho
 |r3 deuisiouns /  in hem may ben mo smale fracciouns / & euere the mo of smale
 |r4 fracciouns  the ner the trowthe of thy conclusiouns / tak ther fore a plate of
 |r5 metal or elles  a bord =t= be smothe shaue / by leuel / & euene polised ! of which
 |r6 whan it is  rownd (^by compas) / the hole diametre shal contene .72. large
 |r7 enches or elles .6. fote of  mesure / the whiche rownde bord for it shal nat
 |r8 werpe ne krooke / the egge of  (^the) circumference shal be bownde w=t= a plate
 |r9 of yren in maner of a karte whel. /  ! this bord yif the likith may be vernissed
|r10 or elles glewed w=t= perchemyn for  honestyte ! tak thanne a cercle of metal
|r11 =t= be .2. enche of brede / & =t= the hole  dyametre (^w=t= in this cercle shal)
     contene [the forseide]=c= .68. enches / or .5 fote (& .8. enches) / & subtili lat
|r12 this cercle  be nayled vp on the circumference of this bord or ellis mak this
|r13 cercle of  glewed perchemyn. / this cercle wole I clepe the lymbe of myn
|r14 equatorie  =t= was compowned the yer of crist .1392. complet the laste meridie
|r15 of decembre  ! this lymbe shaltow deuyde in 4 quarters by .2. diametral
|r16 lynes in maner of  the lymbe of a comune astrelabye & lok thy croys be trewe
|r17 proued by  geometrical conclusioun / tak thanne a large compas =t= be trewe
|r18 & set the ffyx  point ouer the middel of the bord (^on) which middel shal be
|r19 nayled a plate of  metal rownd ! the hole diametre of this plate shal contiene
|r20 .16. enches large  for in this plate shollen ben perced alle the centris of this
|r21 equatorie / & ek in  proces of tyme may this plate be turned a bowte after =t=
|r22 auges of planetes  ben moeued in the .9. spere thus may thin instrument laste
|r23 perpetuel. ! tak thanne  as I haue seid by forn the fix fot of thy compas & set
|r24 it in the middel of  this plate & w=t= the moeuable point of thi compas descriue
|r25 a cercle in the  ferthest circumference of thy lymbe ! & nota =t= the middel
|r26 poynt of this plate  wher as the fix fot of thy compas stondith / wole I calle
|r27 centre .aryn. / mak  thanne a narwer cercle =t= be descriued vp on the same
|r28 centre aryn but  litel quantite fro the forthest forseid cercle in the lymbe in
|r29 whiche space  shollen ben deuyde mynutes ofthe lymbe/ mak thanne a narwere
|r30 cercle som  what ferther distaunt fro the laste seid cercle / in which shal be
|r31 deuyded the  degres of the same lymbe mak yit a narwere cercle som what
|r32 ferthere  distaunt fro this laste seid cercle in which shal ben writen the
     nombres of



|p20


 |r1_[f.72r] degres / mak yit anarwere cercle som what ferther distaunt fro this laste
 |r2 seid  cercle in which shollen ben writen the names of 12 signes / & nota =t=
 |r3 this laste  seid cercle wole I calle the closere of the signes / now hastow .5.
 |r4 cercles  in thy lymbe / & alle ben descriued vp on centre aryn / and euerich
 |r5 of the  .4. quarters in thi lymbe shal ben deuided in 90 degres =t= is to sein
 |r6 .3. signes  & eueri degre shal be deuided in 60 mi=a= ! & shortly thi lymbe is
 |r7 deuided  in maner of the lymbe in the bakside of an astrelabie / deuyde
 |r8 thanne thilke  lyne =t= goth fro centre aryn vn to the cercle closere of the
 |r9 sygnes (versus finem geminorum) in 32  parties equales. whiche parties ben
|r10 (^cleped) degres of the semydiametre / marke thise  parties dymli (ut
     postea deleantur) ! and nota =t= this diametral lyne deuided in 32 parties
|r11 shal be  cleped lyne alhudda / set thanne the fix point of thy compas vp on
|r12 the ende  of the firste deuysioun fro centre aryn in lyne alhudda / & the
|r13 moeuable  point vp on the ende of the 30 deuisioun fro the fix poynt of thi
|r14 compas in  the same lyne / so dwelleth ther but .1. deuisioun by twixe thy
|r15 moeuable  point & the closere of the signes / & .1. deuysioun bi twixe thy
|r16 fix poynt  & the centre aryn / & descryue thus a cercle / & tak ther the
|r17 eccentrik  cercle of the sonne / scrape thanne awey the deuysiouns of lyne
|r18 alhudda !  ! deuyde yit (^dymly oculte) the same lyne alhudda fro centre
|r19 aryn / vn to the closere  of the signes in 60 parties equales / set thanne the
|r20 fix poynt of thy  compas in centre aryn / & the moeuable point in .12. degres
|r21 & 28 mi=a= of lyne  alhudda & descriue a cercle / & =t= is the centre defferent
|r22 of the mone /  perce thanne (al) the circumference of this defferent in 360
|r23 subtil holes equales  of space & thise spaces by twixe the holes / ben deuyded
|r24 owt of the  degres of the lymbe ! & nota =t= the yer of crist 1392 (^complet
|r25 [- vltimo .10.bre in meridie london]=e=) the aux of saturnus  was the (^last)
|r26 meridie of decembre at londone I seye the aux of saturne in the  .9. spere
|r27 was .4. dowble signes 12 g=a= 7 mi=a= .3. 2=a= & cetera / the remenaunt of  auges sek
|r28 hem in the table of auges folwynge / tak thanne a Rewle  & ley =t= on ende
|r29 in centre aryn / & =t= other ende in the lymbe / in the ende  of the minut wher
|r30 as endith the aux of the planete / & draw ther a lyne  w=t= a sharp instrument
|r31 fro centre aryn vn to the closere of the signes / &  no ferthere for empeiryng
|r32 of the lymbe & fasteby this lyne writ the  name of the planete (cuius est aux)
|r33 this rewle is general for alle planetis / sek thanne  in thi table of centris / the
|r34 distaunce of the centre equant of saturne  fro centre aryn which is .6. g=a=
|r35 50 mi=a= / set thanne the fix point of thy  compas in centre arin / & the moeuable
|r36 poynt in 6 g=a= & 50 mi=a= in lyne  alhudda fro centre aryn ! turne than softely
|r37 thy compas abowte. til =t= the  moeuable poynt [til it]=c= towche the lyne of the
     aux of saturne &



|p22


 |r1_[f.72v] stondinge alwey (^stille) the fix poynt of thy compas in centre aryn / marke
 |r2 w=t= thy moeuable poynt  in the lyne of the aux of saturnus a dep prikke / for
 |r3 in =t= prikke shal be perced a smal hole  for the centre equant of saturnus / &
 |r4 faste by this hole mak an E in signefyeng of equant //  ! thanne tak awey thy
 |r5 compas / & loke in thi table of centris / the distaunce of the centre  defferent
     of saturnus / & =t= is .3. g=a= & 25 mi=a= / set (a centre aryn) thanne the fix point
 |r6 of thy compas in  centre aryn & thy moeuable point in .3. g=a= & 25 mi=a= in
 |r7 lyne alhudda / & torne softely  thi compas til =t= the moeuable point towche
 |r8 the (^forseide) lyne of the aux of saturne / & stonding  stille thy fix poynt
 |r9 of thi compas in centre aryn / marke w=t= the moeuable poynt in  the lyne of
|r10 the aux of saturne a dep prikke for ther in shal be perced a smal hole  for
|r11 the centre defferent of saturnus/ & fasteby this hole mak an .D. for defferent  ! &
|r12 nota =t= by this ensample of saturnus shaltow make the centres defferentes/ &  ek
     the equantes of alle the planetis / after hir distaunces (in tabulis) fro centre
|r13 aryn  & prikke hem in the lynes of hir auges ! thanne shaltow sette the fix
|r14 point  of thy compas in the lyne of the aux of mercurie euene by twixe the
|r15 centre .E.  & centre .D. of mercurius / & strid the moeuable poynt til it wole
|r16 towche bothe  centre E & ek centre .D. of mercurius / & descryue ther a litel
|r17 cercle & thanne  shaltow se =t= the lyne of the aux of mercurie departith this
|r18 litel cercle in .2. arkes equals / this is to seye / =t= the lyne kerueth this litel
|r19 cercle euene  amidde / this litel cercle shal be perced ful of smale holes (in
|r20 circumferencia circuli) by euene proporcioun  as is the centre defferent of the
|r21 mone in 360 holes yif it be possible or in  .180. or in 90 atte leste / but sothly
|r22 the spaces by twixe the holes (ne) shal nat  be deuided owt of the grete lymbe
|r23 of the instrument / as is the centre defferent  of the mone / but owt of the
|r24 circumference of the same litel cercle it shal be  deuided by thy compas ! scrape
|r25 thanne awey thilke 60 deuysiouns in lyne alhudda  ! & yit deuyde the same
|r26 lyne alhudda in .5. parties equales (by compas) fro centre aryn vn  to the
|r27 cercle =t= is closere of the signes / & euerych of thilke .5. parties shal be deuided
|r28 in 60 parties / thise diuisiouns ne shal nat ben scraped awey / deuyde  thanne
|r29 the line =t= goth fro centre aryn to the hed of capricone which lyne  is cleped
|r30 in the tretis of the astrelabie the midnyht line / I seye deuyde this  midnyht
|r31 lyne in .9. parties equals fro centre aryn (vn) to the closere of the  signes / &
|r32 euerich of thise deuysiouns shal be deuided by thy compas in 60 parties  equales !
|r33 thise deuysiouns ne shal nat be scraped awey ! laus deo vero  now hastow the
|r34 visage of this precios equatorie / nota =t= thise last seid .9. diuisiouns  in the
     midnyht lyne shollen seruen for Equacioun of the 8=e= spere



|p24


 |r1_[f.73r] {n}ow for the composicioun of the Epicicle for the visage of thyn equatorie / thow
 |r2 shalt  make a cercle of metal of the same brede & of the same widnesse in
 |r3 circumference in diametre / & in alle thinges lik to the lymbe of thin
 |r4 instrument  & in the same manere shal it be deuyded in mynutis. in degres
 |r5 in nombres  in names of signes / & in 5 cercles compased / as is the firste seid
 |ra lymbe / saue =t= .a. //  // .b. the eccentrik of the sonne / ne shal nat be
 |rb in the epicicle & also  =t= it be nat filed to ney to the closere of his signes list
 |rc thow perce the hole (foramen)  of thi commune centre defferent amys / or elles
 |r6 list the hole breke  [ =t=]=c= / this epicicle mot haue suffisaunt thikkenesse to
 |r7 sustene hym self  ! Tak thanne this epicicle & ley it (^sadly & ) euene vp on
 |r8 the visage of thin equatorie  so =t= (capud) aries of thin epicle lie euene vp on
 |r9 the hed of aries in the lymbe  of thin equatorie / & libra vp on libra & cancer
|r10 vp on cancer & capricorne vp  on capricorne & (^euery) signe vp on signe
|r11 this is to seyn the hed of euery signe  vp on hed of euery signe / tak thanne
|r12 a Renspyndle or a boydekyn / & in  direct of the hed of cancer. (thow shalt)
|r13 in the cercle =t= is closere of the signes (perce) make a  litel hole thorw the
|r14 epicicle / & thanne shaltow se (=t=) yif thow haue trewely compased  thy cercles /
|r15 =t= the poynt of thy renspindle shal haue towched the closere  of the signes
|r16 in direct of the hed of cancer in thyn equatorie / thislitel hole =t= is no gettere
|r17 than a smal nedle shal be cleped the comune  centre defferent of planetes / tak
|r18 thanne a barre of metal of the brede of a large enche & of suffisaunt thyknesse /
|r19 (of) the whiche barre =t= on ende  shal be sowded to the closere of (^the)
|r20 signes in direct of aries in this epicicle  & =t= other ende shal be sowded to the
|r21 closere of the signes in direct of libra  in the same epicicle / draw thanne by
|r22 thi rewle a lyne fro the hed of aries  to the hed of libra endelong the barre / &
|r23 draw swich another lyne (^ouerthwart) [in]=c=  the barre fro the hed of cancer
|r24 to the hed of capricorne / & in the seccioun  of this crois is the centre of the
|r25 epicicle / tak thanne a rewle of latoun  that (ne) be nat ful thykke / & lat it
|r26 be the brede of an enche & the lengthe shal  be as long as al hol the diametre
|r27 of the Epicicle this rewle mot be  shape in maner of a label on an astrelabie !
|r28 the centre of this rewle  shal be nayled to the centre of the forseide barre in
|r29 swich a manere  =t= this label may torne abowte as doth the label of an
|r30 astrelabie / in  middes of this nayl =t= fastnyth the barre & the label to gidere
|r31 ther mot  be a smal prikke =t= be dep / which prikke (id est punctus) is the
|r32 centre of thin epicicle  ! tak thanne by thy large compas the distaunce by twixe
|r33 centre aryn & the  closere of the signes / which distaunce is the lengthe of lyne
|r34 alhudda  ! & be it on a long rewle or elles be it on a long percemyn / marke
|r35 w=t= thy  compas the forseide distaunce / & deuyde it in 60 parties equals & than
|r36 hastow  a newe lyne alhudda / sek thanne in thy table of centres / the
|r37 semydiametre  of the epicicle of saturnus / & =t= is .6. g=a= & 30 mi=a= of swiche
|r38 degres as ben  60 in line alhudda / tak thanne w=t= thy compas the space of
|r39 .6. g=a= & 30 mi=a=.  of lyne alhudda / & set the fix point of thy compas in the
     centre of thin



|p26


 |r1_[f.73v] Epicicle =t= is the poynt (punctus) in the hed of the nail / & endelong the label
 |r2 set the  moeuable poynt of thi compas & w=t= =t= moeuable poynt mak a marke
 |r3 astrik in the  label & fasteby the strik writ .sa. for saturne / this ensample of
 |r4 saturne  techith how to maken in the label alle the semydiametres of Epicicles 
 |r5 of alle the planetis / nota =t= the sonne (ne) hath non epicicle ! & nota =t=
 |r6,|r7 alwey  as the label turnyth/ so shewith it the epicicle ofeuery planete/ laus  deo
 |r8 vero now hastow complet thyn equatorie w=t= alle hise membris  ! and nota =t=
     eccentrik of the sonne shal nat be compassed in this epicicle / Explicit 
 |r9 the face of the equatorie
           |r10  nota =t= euery centre mot ben also smal
           |r11 as a nedle / & in euery equant mot
           |r12 be a silk thred
           |r13  nota =t= the eccentrik of the sonne is
           |r14 compaced on the bord of the instrument
           |r15 & nat on the lymbe for sparing
           |r16 of metal /  nota shortly =t= but so be
           |r17 =t= bothe the closeres of the signes
           |r18 ben precisly ilike of widnesse / &
           |r19 but so be =t= centre aryn stonde precise
           |r20 as fer fro his closere of the signes as
           |r21 the centre of thin epicicle stondith fro
           |r22 the comune centre defferent precise / thyn
           |r23 epicicle is fals / but natheles
           |r24 yif thow myshappe in this
           |r25 cas i shal teche the aremedie
           |r26 ! knokke thi centre defferent
           |r27 innere or owtre til it stonde
           |r28 precise vp on the closere of the
           |r29 signes in the lymbe of thin
           |r30 equatorie / so wole thanne the
           |r31 centre of thin epicicle precise
           |r32 stonde vp on centre aryn
|r33 the sixte
|r34 cercle is the                   |r52 the prikkes in the lynes
|r35 eccentric of the sonne          |r53 ben the centris equantis &
|r36 & the .5. cercle =t= is red    |r54 defferentis / & alle thise
|r37 is the closere of the signes    |r55 centres saue the equant
|r38 & the seccioun of the crois     |r56 of mars ben by twixe
|r39 is centre aryn ! & =t= other   |r57 centre aryn & the centre
|r40 centre is the centre of the     |r58 defferent of the mone
|r41 eccentrik of the sonne          |r59 the owterest space is mynutis
|r42 ! & the lyne deuyded in .9.     |r60 & the nexte space is degres
|r43 is the midnyht lyne I           |r61 & the thridde space is nombres
|r44 wot wel it is figured           |r62 of degres & the ferthe space is
|r45 boistosly / & the cercle        |r63 for names of signes but
|r46 abowte centre aryn is           |r64 natheless the narwere cercle
|r47 the centre defferent of the     |r65 of the signes is cleped the
|r48 mone / the litel cercle         |r66 closere of the signes / & it is
|r49 is the defferent of mercurie // |r67 compased with red
|r50 ! the smale lynes ben lynes
|r51 of auges



|p28


 |r1_[f.74r] the epicicle     nota file nat to ney the rede cercle =t= is closere of
                   |r2 the signes / list the commune centre defferent breke
                   |r3 lat stonde a litel lippe as shewith in direct of
                   |r4 the hed of cancer
                   |r5 nota I conseile the ne write no names of signes (id est in epiciclo)
                   |r6 til =t= thow hast proued (^=t=) thi comune
                   |r7 centre defferent is treweli & justli set
                   |r8 in direct of the closere of the signes
                   |r9 of thin equatorie
|r10 ! this
|r11 epicicle
|r12 is deuyded
|r13 & compased in
|r14 alle thinges
|r15 lik to the lymbe of the equatorie
|r16 ! but it hath non
|r17 eccentrik of the
|r18 sonne / the prikke
|r19 =t= stant in the
|r20 closere of the
|r21 signes in direct
|r22 of the ende of
|r23 geminis is the
|r24 commune centre
|r25 defferent ----
|r26 ! but natheless thus lith thin
|r27 instrument whan thow makest
|r28 equacioun of thy mone



|p30


 |rd_[f.75r] pro argumentis trium superiorum minue eorum med' mot de med' mot solis / &
 |re,|r1 remanet argumentum  [satur .io. & martis & vener]=e=  {s}ek medius motus of
 |r2 saturnus Juppiter mars & venus / & hir mene argumentis in thy tables / & writ
 |r3 hem in thy sklat / put thanne a  blak thred in centre aryn (terre) & a whit
 |r4 thred in centre equant of  any planete =t= the list haue of equacion. // and put
 |r5,|r6 the comune  centre defferent of thyn Epicicle / vp on the centre different  in
 |r7 thy plate / of thilke planete =t= thow desirest to haue equacioun  I sey =t= w=t=
 |r8 a nedle thow shalt stike the comune centre defferent of thin Epicicle / vp
 |r9 on the centre defferent =t= is perced  on thy plate for swich a planete a the list
|r10 to haue of equacoun  ! loke thanne (pro successione signorum) fro the hed of
|r11 aries wher the mene motus of thy planete  endith / in the grete lymbe of thy
|r12 plate / & ley ther thy blake thred.  ! ley thanne thy white thred equedistant
|r13 by the blake thred in  the same lymbe. & proeue by a compas =t= thy thredes
|r14 lyen equedistant //  vnder whiche white thred ley the pool of thyn Epicicle ! &
|r15,|r16 stond=inge thyn Epicicle stille in this maner / I seye stondinge  the pool of
|r17 thin epicicle vndir thy white thred stille / & the  commune centre different
|r18 fix w=t= thy nedle to the foreseide centre  defferent of the planete desired / tak
|r19 than thy blake thred  & ley it so =t= it kerue the centre of the Epicicle / &
|r20,|r21 streche  forth vp vn to vpperest part of the same epicicle / and  than shal this
|r22 blake thred shewe bothe the verrey motus (locum)  of the epicicle in the grete
|r23 lymbe / & ek the verrey aux of  the planete in the epicicle / & thanne the ark
|r24 by twixe medios  motus of the planete / & the verrey motus of the epicicle / is 
|r25,|r26 cleped the equacion of his centre in the lymbe (zodiacus) // to whom  is lik
|r27 the equacion of his argument in his epicicle. //  =t= is to sein the ark by twixe
|r28 his mene aux & his verrey  aux. ! for sothly the mene aux is shewed in the
|r29,|r30 Epicle by the white thred / vnder which thow puttest the  pol of the
|r31 epicicle // & the verrey aux is shewed in the  epicicle by the blake thred ! &
|r32 stondinge stille thin Epicicle in this same disposicioun / ley the ende of thy
|r33,|r34 label  =t= is grauen // fro the white thred as many signes  degres & mi=a=. as
|r35 shewith the mene argument in thy  [grene]=c= tables for =t= day of thy planete
|r36,|r37 desired ! & rekne  this mene argument fro the white thred after successioun
 |rf of signes of euery planete saue only of the mone  [sa 1 31 19 22 44]=e=



|p32


 |r1,|r2_[f.75v] ! & ligginge the marked ende of thy label vpon [the]  the ende of this mene
 |r3 argument in the epicicle / ley  thy blake thred vp on the marke of thy planete
 |r4,|r5 =t= is  grauen in thi label. & wher as the same blake  thred keruyth the lymbe
 |r6 of thy plate tak ther  the verrey place (locum) of the planete in the .9. spere 
 |r7,|r8 ! and the ark by twixe the verrey place (locum) of the  planete (in limbo)
 |r9 & the verrey place of the epicicle considered in  the lymbe is cleped equacioun
|r10 of his argument this maner  of equacioun is for saturnus Juppiter mars &
|r11,|r12 venus / but  in the remenaunt of planetes in some thinges it varieth  sol ! the
|r13 mene motus of the sonne ben rekned fro the hed of aries  after successioun of
|r14 signes ! the sonne hath non Epicicle ne non  Equant & therfor the pol of the
|r15 epicicle mot ben in stide of the  body of the sonne in the .9. spere ! the white
|r16 thred =t= thow puttest  in his centre defferent in the plate (lamina) // mot ben
|r17 in stide of the white  thred =t= othre planetes han in hir centres equantis ! the
|r18 blake thred  =t= euermo stant in centre aryn / mot be leid at the ende of his 
|r19,|r20 mene motus ! tak thanne his white thred & lei it equedistant  in the lymbe
|r21 by the blake thred ! whiche blake thred shewith the  mene motus of the
|r22 sonne ! fixe thanne w=t= thy nedle the commune  centre defferent of thyn
|r23 Epicicle to centre aryn. & remew nat thy (nedle)  ! & vnder this white thred ley
|r24 softely the pol of the Epicicle  & wher as the white thred keruyth the grete lymbe
|r25,|r26 tak ther [ther] the verrey place of the sonne in the .9. spere / the ark  of the
|r27 lymbe by twixe his aux =t= is now in cancer. & the blake  thred is the argument
|r28 of the sonne ! the ark by twixe the  blake thred & the white in the lymbe is
|r29 the equacion of the  sonne / which ark nis but litel. / the mene motus of the
|r30,|r31 sonne  is the ark in the lymbe by twixe the hed of aries & the blake  thred in
|r32 the same lymbe ! the verrey motus of the sonne is  the ark of the lymbe by
|r33 twixe the hed of aries & the blake  thred whan it (id est filum) is remewed fro
|r34 the mene motus & crossith the  white thred in the in the pol ofthe Epicicle ! the
|r35 same  verrey motus was shewed erst by the white thred of (the) defferent 
|r36,|r37 whan it lay equedistant by the blake thred in the limbe ~ ~ ~  & nota =t= the
|r38 markes in thy label descriuen the Epicicles of planetes as the  label turneth



|p34


 |rg_[f.76r] [mercurius]=o=     this canon is fals
 |r1,|r2 {R}ekne after succession of signes fro the hed of aries in the  lymbe / the mene
 |r3 motus of mercurius ! & considere ek how mochel in  the same lymbe is by twixe
 |r4 the hed of aries. & the lyne of his  aux / =t= yit is (^in) the lattere ende of
 |r5 libra ! & rekne alwey after  successioun of signes ! w=t= draw thanne the
 |r6,|r7 quantite in  the lymbe. by twix the hed of aries & the forseid aux / owt  of
 |r8 his mene motus ! & considere how moche is the remnaunt  of his mene motus
 |r9 whan this aux is thus w=t= drawe owt  of al the hoole mene mot ! & so mochel
|r10 rekne after succession  of signes in his litel cercle / fro the lyne of his aux =t=
|r12 keruyth  the same litel cercle ! I seye rekne after successioun of  signes. from
|r13 lettere .D. =t= is grauen in his lytel cercle / & procede  in the same litel cercle
|r14 to ward lettere .E. opposit to .D. /  I sey rekne thilke remnaunt (of the mene
|r15 motus) =t= dwelde whan the quantite  of his aux was w=t= draw owt of his hole
|r16,|r17 mene motus  as I haue seid by forn ! & wher as ---- thilk remnaunt  forseid
|r18 endith in the litel cercle / tak ther the verrey centre  defferent of mercurie. as
|r19 it happith diuersely som tyme in on  hole & som tyme in an other ! for lettere
|r20 .D. ne seruyth of nothyng  ellis but for to shewe the wher thow shalt by
|r21 gynne thy  reknyng in thy litel cercle ! ne lettere (^E) ne seruyth nat but
|r22,|r23 for to shewe the which wey =t= thow shalt procede fro lettere .D. / now  hastow
|r24 founde thy defferent & thin equant // in which equant put  a whit thred ! & stike
|r25 w=t= anedle the comune centre defferent  vp on his centre defferent in the
|r26 plate (lamina) . ! & w=t= thin Epicle wirk  & w=t= thy thredes as thow workest
|r27 w=t= saturnus Juppiter mars  & venus ! nota =t= yif the aux of mercurie be fro the
|r28,|r29 hed of aries  more than his mene motus fro the same hed. / than shaltow  adde
|r30 .12 signes to his mene motus / than maistow w=t=draw  his aux owt of his mene
|r31 motus ! & nota generaly =t= thy nedle  ne be nat remewed whan it is stikyd
|r32,|r33 thorw the commune  centre defferent in to any centre different on thy plate  til
|r34 thin equacion of the planete be endid ! for yif thy commune  centre different
|r35 stirte fro the centre ([deffer]=e=) on thy plate  al thin equacion of thy planete
|r36 desired is lorn !  hic nota =t= the centre  defferent of mercurie hath but
|r37 24. holes as in myn instrment  wher for .I. rekne but .2. holes for a signe as
|r38 in the  gretter cerkle of mercurie fro the lyne of his aux



|p36


 |rh_[f.76v]                                      luna
 |r1,|r2 - luna {R}ekne after succession of signes fro the hed of aries in the  lymbe
 |r3 the mene motus of the mone ! & rekne in the same  manere the mene motus
 |r4 of the sonne (a capite arietis) as fer as it strechcheth //  w=t= draw thanne the
 |r5 mene motus of the sonne owt of the mene  motus of the mone ! [& as moche
 |r6 as the mene mot of the  mone is more than the mene mot of the sonne]=c=
 |r7 (^&) considere =t=  difference / ! and the quantite of that difference =t= I clepe 
 |r8,|r9 the remenaunt / rekne it fro the (^ende of the) mene motus of the sonne in  the
|r10 lymbe bakward agayn successioun of signes / & wheras  endith this remenaunt /
|r11 mak a mark in the lymbe ! draw  thanne thy blake thred to this forseide mark //
|r12,|r13 & wher as  thy blake thred keruyth the cercle defferent of the mone  in that
|r14 same hole is the centre defferent of the mone  as it happith. ! & in the nadyr
|r15 of this hole / is the centre  equant / put thanne in this centre equant a whit
|r16,|r17 thred  ! now hastow thy two centres / stike thanne thy commune  centre
|r18 defferent vp on the centre defferent of the mone /  w=t= thy nedle ! yit rekne
|r19 agayn the mene motus of the  mone fro the hed of aries after successioun of
|r20,|r21 signes  & ley ther thy blake thred ! & ley thy white thred  equedistant by the
|r22 blake thred in the lymbe // moeue  thanne softely the pool of thyn Epicicle
|r23 vnder thy  blake thred (^tak thanne thy white thred & ley it ouer the pol of
|r24 the epicicle) & wheras thy white thred keruyth  the cercle of the Epicicle
|r25,|r26 tak ther the mene aux in  thyn Epicicle & fro this white thred rekne in  thyn
|r27 Epicicle bakward a gayns successioun of  signes thy mene argument / I seye
|r28,|r29 rekne it in the  degres of thin Epicicle / & where as endith thy  reknynge in
|r30 the Epicicle. ley ther the marked  ende of thy label. / & ley thy blake thred
|r31,|r32 vp on the  mark of the mone in thy label. & wher as this same  blake thred
|r33 keruyth the lymbe tak (^ther) the verrey place of  the mone in the .9.
|r34 spere / nota =t= the pool of the Epicicle  ne shal nat ben leyd vnder the blake
|r35 thred of non other  .planete. saue only of the mone



|p38


 |ri_[f.77r]    is canon is fals
 |r1,|r2 and nota =t= yif the mene motus of the sonne is more than  the mene mot of
 |r3 the mone than shaltow adde .12. signes  to the mene mot of the mone & thanne
 |r4,|r5 maistow w=t=drawe  the mene mot of the sonne owt of the mene motus of  the
 |r6 mone. & shortly for to speken of this theorike I sey =t= the centre of hir (lune)
 |r7 epicicle (^in voluella) moeuyth equaly aboute the centre  of the zodiac =t=
 |r8 is to sein aboute the pol of the epicicle =t=  is thy riet / & thy blake thred whan
 |r9,|r10 it first leid thorw  the pol of thyn Epicicle it shewith the verrey aux of  the
|r11 planete (in epiciclo) riht as the white thred shewith the mene aux in  the same
|r12 epicicle. Item whan thow (^hast) rekned the argument  of aplanete in thin
|r13 epicicle. thanne is the body of the planete  in thin Epicicle at the ende of thyn
|r14 argument & whan (thy) blak thred  is leid thorw the marke of a planete in
|r15,|r16 thi label. in maner forseid than shewith thy blake thred the verre place of  the
|r17 planete at regard of the .9. spere as shewith in thy lymbe  & the ark by twixe
|r18 the verrey motus & the mene motus  of the mone is the equacion of his argument
|r19,|r20 in the lymbe /  & the ark by twixe his mene aux & his verrey aux is  the
     equacion of his argument in the Epicicle

|r21 ! to knowe the latitude of        the mone by thyn
|r22 instrument loke in thyn           almenak the verrey
|r23 motus of the mone & the verrey    motus of caput .dra.
|r24 .lune. at same tyme / & yif       so be =t= thy
|r25 verre mot of thy mone be          lasse than .6.
|r26 signes fro caput draconis //      w=t=draw the
|r27 verrey motus of caput owt         of the verey
|r28 motus of the mone / & writ =t= difference (id est verum argumentum latitudinis lune)
|r29 for =t= is hir (lune)  verrey argument (id est latitudinis) & so many signes
|r30 degres & mi=a= as  thow hast in the (verrey) argument (of hir latitude) rekne
|r31,|r32 hem fro the  hed of aries after successioun of signes in thy lymbe /  & wher
|r33 as endith thy reknyng ley =t= on end of thy thred  & e middel of thy thred
     shal kerue the meridional lyne / & strechche



|p40


 |r1,|r2_[f.77v] so forth ouerthwart al the dyametre of thy plate vnto  the lymbe / as thus
 |r3 I suppose =t= on ende of thy thred laye  after succession of signes .10. g=a=. fro
 |r4 the hed of aries in  the lymbe / =t= other ende of thy thred shold lye .20 g=a=.
 |r5,|r6 of virgo / in the lymbe/considere thanne how many .g=a=. & mi=a==t= the middel
 |r7 ofthy thred lith fro centre aryn. wher as  euermo by gynnith this reknyng/ I seye
 |r8 considere in the  seccions of the meridional lyne how many g=a= & mi=a= lith the
 |r9,|r10 middel  of thy thred fro centre aryn / & tak ther the nombre of the  latitude
|r11 .7. trional of thy mone fro the Ecliptik / which latitu(de)  ne passith neuer
|r12 .5. g=a=. ! & yif the verrey motus of the mone  be more than .6. signes fro the
|r13 verrey mot of caput / than  shaltow w=t=draw the verrey motus of cauda owt
|r14,|r15 of the  verrey motus of the mone. and by gynne thy reknynge  at the hed of
|r16 libra / & procede bakward agayns successioun  of signes / as thus =t= yif =t= on
|r17 ende of thy thred laye  agayn successioun of signes .  10. g=a= fro the hed of libra 
|r18,|r19 than sholde =t= other ende lye in the .10. g=a= fro the hedof aries after successioun
     of signes / considere thanne in
|r20 the meridional lyne                 the quantite meridional of the lati
|r21 tude of thy mone                    fro the Ecliptik / as I haue
|r22 told by forn =t=                   the quantite of g=a= & mi=a= =t= the
|r23 middel of thy                       thred in the meridional lyne lith
|r24 fro centre aryn                     the same quantite of degres &
|r25 mi=a= is the latitude               of the mone fro the eclyptik
|r26 be it north be it                   sowth ! & nota =t= generaly euermo
|r27 bothe endes of                      of thy thred shollen lyen
|r28 equedistant fro                     thilke diametre =t= keruyth the
|r29,|r30 heuedes of aries & libra ! yit quykly vnderstond this  canon. I sey whan the
|r31 forseide verrey argument of the  mone is precisly .90. degres fro the hed of
|r32 aries in the  lymbe after succession of signes / tak ther the grettest



|p42


 |r1_[f.78r] latitude of the mone 7trional (id est ab ecliptica) / & yif so be =t= hir verrey
 |r2 argument  passe (^anything) .90. degres fro the hed of aries / styrt ouer the
 |r3 meridional lyne  in to the firste of cancer & ley ther =t= on ende of thy thred
 |r4,|r5 & =t=  other ende in to the laste of geminis / & so forth day by day  shaltow
 |r6 descende in the meridional lyne after =t= the reknynge  of thy verrey argument
 |r7 requerith. / til thow come agayn to  centre aryn. for than hastow mad equacion
 |r8 of latitudes for .6.  signes as I first seide / & euere mo lith thy thred equedistant 
 |r9,|r10 fro the diametre =t= keruyth the heuedes of aries & libra / &  euer mo as many
|r11 degres & mi=a= as the midel of thy thred lith in  the meridional lyne fro centre
|r12 aryn. so many g=a= & mi=a= is the latitude of the mone fro the Ecliptik / & whan
|r13,|r14 thy verrey argument passith .6. signes wyrk w=t= cauda as I tawhte the  &
|r15 ascende vpward in the meridional lyne day by day to the laste  of geminis in
|r16 the lymbe / & fro thennes discende agayn as  I haue seid by forn ! & nota
|r17 =t= whan the mone is direct  w=t= caput or cauda. she hath no latitude & whan
|r18 she passith  caput til she be 3 signes (in) distance (pro successione signorum)
|r19 fro caput she is 7trional  ascendinge / & in hir gettest latitude 7trional / & fro
|r20,|r21 the  ende of thilke 3 signes she is 7trional descending til she  come to the
|r22 opposit of caput =t= is to seyn cauda draconis  & fro cauda til she come mid
|r23 wey (in medio) by twix capud & cauda  & fro thennes is she meridional
|r24 assending til she come agayn  at capud ! (1391 .17. decembris) Ensample
|r25 my mone was .12. g=a= .21. mi=a= of virgo / &  caput was 4 g=a= 46 mi=a= of aries tho
|r26 drow I the verrey motus  of caput =t= is to seyn .o. in signes .4. g=a= 46 mi=a= owt
|r27,|r28 of theverrey moeuyng / ofthe mone =t= is to sein owt of 5 signes  .12 g=a= 21 mi=a= /
|r29 tho fond I =t= the verrey argument of the mone  dwelde .5. sig=a= 7 g=a= 35 mi=a= tho
|r30 rekned I after successioun  of signes fro the hed of aries in the lymbe (^the
|r31 same) 5 signes .7 g=a=  35 ma / & ther leide I =t= on ende of my thred & =t= other
|r32 ende  lay in .22 ga 35. mia of aries / tho karf (^the) midel of my thred the 
|r34 meridional lyne .1. degre & 54 mi=a= fro centre aryn by which I  knew =t= the
|r35 latitude of my mone was .1. degre & 54 mi=a= 7trional  descending fro the
     Ecliptik



|p44


 |r1_[f.78v] (1391 .19. februarii) ! another ensample // I fond (scilicet in almenak) my
 |r2 mone in .8. g=a=d .13 m=a= of virgo  & caput draconis in 20 g=a= & 42. mi=a= of aries
 |r3 (^.tho.) drow I the verrey  motus of ---- caput fro the verrey motus of the
 |r4 mone in this  manere. / I say wel =t= I myht nat drawe .20 degres owt of 
 |r5,|r6 .8. degres / ne 42 minutis owt of 13 mi=a= tho added I .30. degres  to the forseide
 |r7 .8. degres of virgo & 60 mi=a= to the .13. mi=a= of the same  virgo. & tho drow
 |r8 I the verrey motus of caput owt of the verrey  motus of the mone / tho dwelde
 |r9 me the verrey argument of the latitude  of the mone =t= is to seyn (^.4. sig=a=)
|r10 .17. g=a= 31 mi=a= tho leide I =t= on ende of my  thred 4 signes 17 degres
|r11 (31 minuta) fro the hed of aries in the lymbe after  successioun of signes
|r12 & =t= other ende (^lay) equedistant fro the diametre  =t= passith by the heuedes
|r13 of aries & libra / & tho fond I the middel  of my thred karf the meridional lyne
|r14 at .3. degres & 22 mi=a= fro the  centre of the Erthe =t= is centre aryn / wher for
|r15 I knew wel =t=  my mone was 3 degres .22. mi=a= in latitude 7trional descendinge 
|r16 fro the Ecliptik ! (1391 23 februarii) the thridde ensample is this I fond
|r17,|r18 in myn  almenak the verrey motus of the mone was 6 degres 24 mi=a= of Scorpio
|r19 & the verrey motus of caput was 20 degres .29. mi=a= of aries. tho moste I wirke
|r20 w=t= cauda by cause =t= verre motus of my mone passed mor than .6. signes tho
|r21 drow I the verrey  motus of cauda owt of the verrey motus of the mone / in
|r24,|r23 this maner / I added 30 g=a= to .6. g=a= of scorpio & 60 mi=a= to 24 mi=a= of the same
|r24 scorpio / tho dwelde me the verrey argument (oflatitude) of the mone  .o. in
|r25 signes 15 g=a= & 55 mi=a= / tho leide I =t= on ende of my thred  o in signes 15 g=a=
     55 mi=a= fro the hed of libra (agains succession of signes) by cause =t= I wirke
|r26,|r27 w=t=  cauda / & =t= other ende of my thred lay equedistant fro the diametre  =t=
|r28 passith by the heuedes of aries & libra / & tho fond I =t= the middel  of my thred
|r29 karf the meridional lyne .1. degre 22 mi=a= fro centre aryn  bi which I knew the
|r30 latitude of my mone was - .1. g=a= 22 m=a= fro  the Ecliptil meridional
|r31 discendinge ! thus shaltow procede day by day vpward  fro the hed of libra
|r32 vn to 90 degres agayns succession of signes  =t= is to seyn vnto the firste of
|r33 cancer & thanne stirt ouer the meridional lyne  whan thy verrey argument of
|r34 thy latitude of the mone passit any thing 90 g=a= / & ley =t= on ende of thy thred
|r35 in gemini & =t= other ende  in cancer / & so com downward day bi day til
|r36 thow come agayn  at centre aryn / & thanne wirk w=t= caput as I haue told
|r37 by fore  ! & nota =t= whan any eclips (lune) fallith in aries taurus gemini.
|r38 cancer. leo. virgo / than is  [than is]=c= the Eclips in caput / & the remenant of
|r39 the Eclipses ben  in cauda
