[ 5 ] 
It appears, by the foregoing Table, that One only 
of thefe 26 Microfcopes is able to magnify the Dia- 
meter of an Objed 160, and its Superficies 25600 
times ; all the reft falling much fhort of that Degree. 
And therefore, I am fully perfuaded, and believe I 
fhall be able to prove, that many of the Difcoveries 
Mr. Leeuwenhoek gives an Account of, could not 
poflibly be made by Glaffes that magnify no more than 
this. 
I beg Leave to obferve, that our Cabinet is but the 
Second in Mr. Leeuwenhoek's Collection, and is very 
far from containing all the Microfcopes he had, as 
many wrongly have imagined. W'e find here indeed, 
26 Microfcopes in 13 little Boxes: Each Box contains 
a Couple of them, and is marked in Two Places 
with a Number, to diftinguifh it from the reft. But 
as the firft of thefe Boxes is marked 15, and the reft 
with following Numbers on to 27 5 it neceflarily 
implies there were 14 preceding Boxes, fince no Man 
begins with the Number 15. Mr. Leeuwenhoek , 
then, had another Cabinet, that held 14 Boxes before 
ours in numerical Order, and probably each Box 
contained a Couple of Microfcopes, as our Boxes do. 
But, befides thefe Two Cabinets, he had feveral 
other Microfcopes of different Sorts, as his own 
Writings will make appear. 
The Cabinet now before us feems to have been 
only his Repofitory of Obje&s ; for every Microfcope 
herein was engaged by an Objeft affixed to it, and 
thereby rendered ufelefs for any other Purpofe ; 
whereas thofe he employed in his daily Obfervations 
muft have been always ready, and at full Liberty, 
to examine whatever offered; - Many of them too 
* T 1 1 2 muft 
