C 5017 ) 
mm In Uio fofierhrl PrlfmMe^^ ex eo e^md dd dhsrf^ kcApdrleiu vel mjnf' 
vu o^fiacM G ^edibm Mi^mt^ nlterins remoti, alUbemur 'y fmaYio* 
radii ad H, rabri 4^ (7, & intermedii ad loca intermedia ': & tamen 
propter determinatam pofitionemforamlnum nece^e efl m fimilU fit incidemia 
radiornm Cfijuffue cohris per mrnnn^ue trajeEii, ^teisie ita ex menfara con^ 
fiat radios^ diver fis color ii>us ajf fEios^ habere diver fas leges refraEiimum. 
Sed fufficor mde aMn^as fit R.PAn dpibitationem nempe vldetur cdlo" 
eajfe primurn Prifna A poft Tabdan^^ B C^atque it a convert endo circa Ax- 
em^ verlfimile efl inclinatidnem radiornm interjacent fsr ami m propter in^ 
termedim^ refraSiioner^ fmjfe mutatm. At ex defer iptione ex f afita in Pli i 1 , 
Tranfaftionibus^ete/- Tabula ilia coUocari poft ^ pij mu,^ 
Frifma^m raan tnter joramtna m direutm jacerent^ qua 'vtrha Lathe, ita fo- 
quemadmohm exverbk \ I took two Boards and ^^^^^i Capiebnm duas 
placed one of them clofc behind the Prifm Tabulas ligneas,unHm- 
at the Window conflare potefi. Et ufm Ex- "^"f, ^'1"^^ ^T^^.l^"^^ 
pcrmentvideminnmt. ^ ^ ad feBeftram/ 
Ex fib md ml placet obfer V are ^ qnodinhc Experimento color ma Lmx ob> 
refraBionem fecundi P rlfm at l^ longs mlnhs diffmdit-Hr ac divarlcat y qnam 
cum alba exifrity adeo ut ima^o ad G vel H fit peni clrc^layis • priefertin^ fi- 
Prifmata ftatt4antHr parallel a & in contrario fitu angulorumy prom in Sche- 
mate defignmtur^ ^l^netiamy fi pr<zterea diameter for aminis- y aid^quet la- 
titudinem colorum, mdla erit efifdem color at ^ lacis in longun^ difufio y fed- 
imago, qu<& a qpiopiam colore adG vel H ejfimitur^ (^pofiti^ circularibm fo.^ 
raminibm^ & refraUlonepofleriork Prifrmtis non m^ijori qukm prkrky ra^ 
dii[qHe ad obftacfi!u;ff quam proxinis- perpendicularibmy) erit -flan e circularise 
Id qmd aygult di^nfioyiemy de qua fnpra eglmus^ non ex- conta^ione vel con-^ 
tinuitate materia und-ilantis am celerrime mota vel fimilibus caufis ortam ejfe'g 
fed ex certa n fraBionum c^juf yAe generis radior urn lege. Cur auterB Immi 
" ilia in nno cafti fit circularise & in alii^ nonnihll oblongata^ quomodo dijf^- 
fio lucis in longitudinem in qmlibet c^fti pro arbttrio r^imd pojfit^a. Geometric 
dsterminandpim cum experlentia confer endam relinqm, 
Pofiquam ?. ro^riaws L.ucis his & fimilibm expcrimentisfatis explorata> 
fuerinty fpeEland^ radios tanquamejus five collater ales five fuccejfiv^ts partes- 
de quibm experti fimus per independentiam qmd fint ab invkem di(BnElc& • 
Hjpothefes exir^de difidicandd fmt ^ qu,^ non pofmit concillari reijciendj, 
Sed levlffird negmi efly accommodare Hypothefes ad b^nc D$^rinam. Nam 
fiqfiis Hypothefin CsLncCmmm defendere velit, dice/dtm eft^ globulos ejfe: 
in^q:44 'es vel preffiones globulorume^^e ali.ts aliis fortiores ^ & ind^e diver- 
fimode refrangibileSj apt as ad excltandam fenfationem diver forum color nm. 
Et ficjuxt a Hypothefv4 ClMookii dicendrm efl y ZJnddationes £thris efe^ 
dias majores five crajfiores alik. Atque it a in c<£teris\ Hcec enim videtur 
eJfe fumme neceffaria Lex & Conditio Hypotbefiurn, m quihus NatHratia^ 
corpora ponunttir conflare ex quamplurimis corpufeulis acervatim. context Is-^ nt- 
k diverfis lucerSum corpufeulis, vel ejufdem corpufGuli diverfis prartibmiprout- 
motufigfiy'^iniolh^ut dik q^aHtamm differuMjiwcequdes p.rejfion^s^mtfon^s^ 
0iM 
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