7 jo JMifeellanea Curio fa. 



Ihall be projected on the Fund of the Eye, 

 and therefore the Moon fhall appear larger. 

 And this difpofition of the Eye that magnifies 

 her, magnifies alfo the divifions of our fore- 

 mentioned Lattice , and confequently me by 

 her Body fhall po fiefs no more of the divifions 

 than when fhe feems lefs. Thefe two fore- 

 mentioned accidents , viz., the Moons ima- 

 ginary diftance and duskifhnefs, gradually 

 vanifhing as fhe rifes^ different Species is here- 

 by introduced in the Eye, and confequently 

 fhe feems gradually lefs and kfs , 'till again 

 fhe approaches nigh the Horizon. Thefe two 

 Opinions of Gajfendas and the Abbe being fo 

 nigh a-kin , I fhall confider them both toge- 

 ther, and firfb I aiTert that a wider or nar- 

 rower Aperture increafes not, neither dimi- 

 nifhes the projection on the Retina. I know 

 Honor atus Faker in his Synoffis Optica endeavours 

 to prove the clear contrary to this my AfTer- 

 tion, and that after this manner. Fig. 42 

 A B is an Object , E F the greater aperture 

 of the Pupil, admitting the projection KI 

 on the Retina , whereas the lefTer aperture 

 CD admits only the projection GH; but 

 GH is lefs than KI, wherefore a letter aper- 

 ture diminifhes the projection. 1 admire 

 that any Man that undertook (as Honor atus 

 Faber) to write of Opticks more accurately 

 than a" U that went before him , fhould be 

 guilty of fo very grofs an Error \ and I do 

 more admire that the celebrated Gaffendm, 

 and with him the noble Hevdim fhould be of 

 the fame Opinion: For t ho' the 'forefaid Fi- 

 gure and Demonflration hold moft certainly 

 true in direct projections, as in a dark Room 



with 



