434 ^ r * * Leeuwenhoek*§ Microfcopes. 
not the Cafe, a particular Table muff be 
made for every Set of Glaffes. 
Of Mr. Leeuwenhoek’s Microfcopes . 
HOUGH Mr. Leeuwenhoek *s Mi¬ 
crofcopes are much talked of, very 
few People are acquainted with their Struc¬ 
ture and Apparatus, no Figure of them that 
I remember having ever been made public : 
*tts therefore hoped the Curious will be pleaf- 
ed to fee a Drawing of them, taken with 
great Exadtnefs from thofe in the Repofito- 
ry of the Royal Society, which are all alike 
in Form, and differ very little in Size from 
this Drawing, or from one another *. 
The two Sides of one of thefe Microfcopes 
are fhewn Plate XYll.fg. 7 and: 8. The 
Eye muft be applied to the Side fg. 7.— 
The flat Part A is compofed of two thin 
Silver Plates faftened together by little Ri¬ 
vets h b b b h b. Between thefe Plates a very 
fmall double-convex Glafs is let into a Socket, 
* An accurate Description of the 26 Microfcopes, and 
Gbje&s belonging them, contained in a fmall Cabinet 
which Mr. Leeuwenhoek at his l)eceafe bequeathed to the 
Royal Society , was prefented many Years ago to that Society 
by Martin folkes, Efq; and may be feen N p 380 of the Phi- 
lc fop hie at Tranfafiions. And a farther Account, fetting forth 
the magnifying Powers , and other Particulars concerning the 
fiihte Microfcopes, (which were three Months under my Exa¬ 
mination for that Purpofe) was prefented by me to the Royal 
Society in the Year 1740 , and publilhed Phil, frarf. N° 458 . 
But neither of thefe Accounts has any Drawing of the Mi¬ 
crofcopes. - < 
