( ; 
a great artifice, as really it was,and iiiakes it no lefs a my ftcry by 
concealing the procefs or manuals, whereby it may be efFtfled ; on- 
ly, that nothing was eniploied befides fubftances afforded by the 
Trees which were reprefcnted ; and that thech ef Ingredient was. 
Turpentine. Herein his operation difier'd from that which I 
la 'eiy recited; in that the (ubftance, out of which heraifed thofe 
fhapes, was of a more Fixed Nature 5 that which afforded mine, 
Volatiito thehighcft degree: He could conftantly and regularly 
produce thcfc Figures; bur mine did unexpefledly and forcuitoully 
reprefent themfeJ ves unto my view • neither do I ever again expedt 
the like appearance. Nor will I contend with him^ that fhall af- 
firm, it was a mean Pnantafme, or a fortuitous Coalition of Salts in- 
to fuch pretty figures. But that they were not really fuch as I have 
related,the mofr Saty rical Railleurs or moft obftinate Scepicks fliall 
never prevail upon me to recant and deny. 
More Obfervations from Mr, Leewenhook, in a Letter of Sept. 7. 
1674. fi^^ ^0 ^'-'^ Fublifher. 
I Took, ( [dith he^ the Eye of a Cow, and having with a great pin 
pierced the Cornea^ I found in Aqueous humor ^ which I took 
out, fome/^-ivcryflallinglobuls Avimming, The dark-brown co- 
Jour, which I faw in this Eye, did confift of dark gray globuls. 
The CryJlMin Humor ^ which in hardnefs ahnoft refembles a Nut^ 
meg preferv'd, I have with a rafor cut afunder, and obferving it in 
parcels, I found it to be made up of orbicular Scaly parts , lying 
upon one another, which had their beginning out of the Center,and 
did all confift of cryftallinglobuls. 
After I had let this Cryftallin humor dry for three dayes, it was 
grown fo hard, that, when I put the knife to it, it burft in pieces as 
if it had been hard rofin^Thefe pieces being by me view'd again , I 
not only found in them the abovefaid orbicularScaly fubilance,but 
alfo,that every fcale was compofed again of circular parts, and chat 
thefe circles run contrary to the firft;!ike toaClobemade up of pa- 
per, to the uppermoft paper of which may refemble theourermo/l 
fcaie or plate of this Cryfullin fubftance^ under which uppermoft 
Superfice there lyes another fcale,and ro on continually unco the 
center of the globe : This I fake to be like the firft orbicular fcaly 
fubftance, of which the Cry ftallin humor is madeup. Theother 
round fubftance, of which each fcale is compcfed, T fee, as if up- 
on the mention'd Globe there were drawn lines clofe bv one ano- 
ther, the firft thereof pafllng through boih poles, and the o:hers 
running along the fides thereof, ;uft as if the fuperfice of the globe 
w ere 
