(' 6c84: ^ 
Brevis & dilucida Parallelograrami ^.Profopograpbici defcrip- 
tio 5 quo delineantur modo novo , per radios Paralielos mi^ 
cequalicatem Orthographicatn, geftus, fitiis, Iiabitufque quicun- 
que huraani corporis , fervata Symraetria & proportione ParM> 
tium. 
IN Schemate Vig. Tab. II. PAr^iUehgrammHm ProfopographicHm 
^/ ABCD , ftylmcentrdis HF, cdmrnm defignator "LC, Index K 
A^JivereguUobloma^ piano Par allelogrmmi, ope ciavi Jiriati ex are , 
fecHndum fpecimen^E^ adangnlos re^os apt at a. Hnic reguU infigmtur 
duaDioptra PR, SV^ m medio PR pertufam efiforamefj O, in medio SV 
erighur fii^m perpendkulare regul<0 A, in cnjm medio efi globulus cjui- 
damparvm, per quem^ & foramen O ^rAdim ad ocnlum {qnem inter deline* 
mdumnonoportet e^e fixm,fedliherHm & folutum) objeHo protendi* 
tur, 
. I . Animadvertendum ^radium per foramen O & glohulum protenfm^femi^ 
f \r fore perpendictilarem piano pArallelogrammi^ five ejus Diametro , qH&\ 
ejl reSia lined extenfaper fiylpird defignatorinm LC, & centrum fixHm HF, 
& diBum glohulum parvum^ in qua linea (emper verfatur ifie globulm^ 
qualifcHnque fit Parallelogrammi motus, 
2. Not. Planum delineatorium fenfibile , fuper quod voltuaiur apex L, 
flyli piEioriiLC^ad amuffim defcribentis imaginem ad motnmlndicis KA,C^ 
in quodinf xm eft fljlm centralis lAl^ ,e}fe QYXT -^planum vero mere rati- 
onale, five mathematicum y priori continuum^ effe t ^g>y, 
% , Not, Omnes radies ab objeEio per gUbulum & foramen. O protenfos {ad 
Qculum 5 intotm.edii diaphanipunUis ^duce Indie e KA. collocatum^ qmtfmt. 
punUa in fuperfcls VifibiU ohjeUi defcribendi, qua, fmt infinita^) femferfo^ 
r€ phi Invlcem Parallelos, 
^md fic probatur ; 
eidem reB^ line it, funt ParalleU,fed non in eodem cnm ilia piano ^h^ 
qnoque inter, fe fmt ParalleU h per Prop, lb. lib. 1 1. Eucli- 
dis. ^ ^ \ 
Sed omnes radii oh ohjeEio per Dioptre ad ocnkm proten/ty eidem refls U- 
\a, radio ab objeUo per glob tdum & foramen G protenfo,fmt Paralk' 
ii'. 
^ Ergo fibiinvlcem fmt Paralleli* 
frob. Minor, Si dm reB^Jini?^ eidem piano ad reUos fint angulos^Paral'^ 
ieU€rmtilUre5laline£^per Prop^ 6, Mb, ii. End, 
Sed Primarius radius ab ob]eEioper Dloptras ad oculnm protenfus ^& om* 
ms reliqui radii fee undarii ^ piano mere rationali^<^ matherMjcOf viz,%Ky9 
ddrdhsfmn amnios ex hypothefi^ » \ ■ 
