180 
Ss 
76 
i 
Macro GRAPH AY 
0 Diftaricesiof Objetts alfoy ‘tis very likely they diftinguith, partly "by 
the confonant impreflions'made in fome;two convenient Pearls, onedn 
each ¢lufters for, according as thofe:congruous. impreflions: affect, two 
Pearls neerériapproach'd ‘to eachother, the neerer is the Objéd, and 
the farther they are diftant, the more diftant is the Object: partly alfo 
by thealtetation of each Pearl, requiftte to make the Senfation or Pidture 
perfect:;| fortis impoflible that the Pictures of two. Objects, varioufly 
diftant, can be perfectly painted, or made‘on the fame Retina or bottom 
the eye not altered, as will be very evident to any one that fhall atten- 
tively confider the nature of refraction. Now, whether this alteration 
may be inthe Figure of the Corzea;in the motion of accefs or.recefs ofthe 
Retina towards the Correa,or in the alteration of a cruftaline himour,if 
fuchthere be, I-pretend'not to determine ;. though [think we:need not 
doubts that there:may be as much curiofity of contrivance and ftru- 
ureimevery one of thefe Pearls, as. in the eye of a Whale or Elephant, 
_ and theJalmighty’s Fiat-could as eafily caufe the exiftence of the ‘one as 
the others and as one day-and a thoufand years are the fame with him,fo 
may one ¢yeand ten thoufand, ©...) > : Si 
) This we:may be fure of ‘that the filaments or fenfative parts of the 
Retina mutt be moft exceedingly curious and minute, fince the whole 
Pidture it felfis fuchs lab rinsit deeds the component parts be:of that 
| Retina which diftinguifhes the part of an objed's: Picture that. muft be 
‘many millions of millions lefsthen that ina man’s eye? And how exceed- 
ing curious and fubtile'‘muft the component parts of the medina that 
ec light be, when we'find the inftrument made for its reception or 
i x ion to be fo exceedingly {mall ? we may,I think, from this {pecula- 
. + 
er ox © Des: x £4 . 
‘ th hI tae Be met bk eh tt 
f : 
cd it 
tion be fufficiently difcouraged from hoping to difcover by any optick or 
other inftrument the determinate bulk of the parts of the #edium that 
conveys the pulfe of light, fince we find that’ there is not lefs accurate- _ 
nefs fhewn in the Figurevand_polifhof thofe exceedingly minute Jenti+ 
cular furfaces, then in thofe more large:and ‘confpicuous farfaces of our 
own eyes: And yet can Inot doubt, but that there is adeterminate bulk 
of thole parts, fince I find them unable 'to enter between the parts of 
Mercury, which being in motion, muft necéflarily haye pores, ag 1 fliall 
elfewhere thew, and here pafs by, as being adigreflions)) +. 2 lo od) 
Asconcerning the horns FF, the feelers or fmellers, GG, the Pro- 
feiss H Ay:and 1; the hairsand brifles, KK; 1 thall indeavour to ‘de- 
feribe inthe 42. Obfervation. iiwrst. , i ery 336: Q if iv Nae 
PAs re ad i Lig $ ; : si Fs inti wW FUG 
et” i Aor J £0 Bo 2228 FD oye za: trate ir ' I. Cae St TUE P I 
. : ‘ft [ 
=, ine 
dat LOE ; - | 
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bf 
okie 73 1B stood is : 7 $: ~ ; i ‘Buide (4S otel P 
1010910 attw Ok Of the Teeth of a Snaibe 0000.5! 
Have litéle more toadd of the Teeth of a Snail, befides the Pidture 
that hisbended body,°A BC DE F,which feem’d fathioned very muclt 
like a row of {mall teeth, orderly plac’d in the Gums, ‘and leoks as if it 
“wSashid were 
