J. A .(' . OUDEMANS, Lunette pancratique de M . DONDERS 



a = loo m ui , F= 23ooo 



Piyihic/v SoliOian f,— 298 , (j\=+l(M, £?«= -258 w 



'Dewaaam Sohttai 



( t 1, - +176 , fx- - 52 , ft-~+ 15 

 c= 0'! a-6-3Smm 



W & wclodAt'd. Wat. It 2, DXIII . 



