Sargent- Optic Reflex Apparatus. 



Plate 5. 



tet.ttpt. 



" "^^.cl.trt.rff 



^^1 

 '-(l.tet.rfx. 



JH - ^ ^H,^" 



t^t^^t. 



M:^^---: 



.77 





33 



s 







,/ f'ls.Mi'U. 



.:-^:>^^^% " 



/a.«.Hoi.< ' 



tct.opt. 



•j'jii-y^ss^r' •(•?»"' 



PE.S.del. 



