Il6 VISION WITH THE COMPOUND MICROSCOPE 



I 8^ 



du ro x ~i.~, i 



Q' = 1> + W (^)-^-' + 1 =1> -ir, 



75 



= 1) -0625 (vi) 



_8 



H (id u) d uu f 8 



75 



_8 



n 8 U 



=Q/ ~" u (u f u)duu fSi ^ "~64 =Q . "8 



75 

 =Q'_l-875 . 



Jioth Lenses. Distance apart = B C =^='25 ; F Q = -21 + '25 



= -46 ==$;/"= focus of No. 1 lens = -947 ; /' = focus of Xo. 2 

 leiis= 1-875. 



F = P 4 _J/_ = P 4- '46 X -947 = p 43(> 

 ' _ a r -947 _ 1-875 -46 1 -388 

 = p_-314 (i x ) 



= O'- - 46 X - 1>875 

 -I V -947 1-875 -46 



"947 x - 



/ + /"' -a -947 - 1-875 --4C) 



1-6384 



_ : _= 1'6384 



