i-iiv- ; 



Each optic ganglion contains four nenropile 

 |laottl ut intervals I.etween the retina and the optic tract 

 ami united together by d.-ru-atin- lil.ivs ; upon the dor-al 

 ii r face of the . . utiv neare-t I lie tract is a >inall excrescence 



.; may powiblv represent the t'n uniform body of the ln>eet 

 brain in a very rmliinrntary state. 



Tliero are two paii> c.l c.-iitn- in the deutocerebrum 

 the lateral lolxjs (glohnli) united hy a stout coninii>sur<-. 



1 

 or : D ' 



PC.U 



cc. 

 .-' 



C.PC.L 



..GL. 

 ..GB. 



E " 



%*** 



%** 



f 



W-SB. 



'/./ 

 .... GL. 







,.'/ DC 



C.'GB. '/'-. 



T'C 



II ;-.< -ilI MCtkm through th- Urnin ! , I -la, tisjlu rintilis. X 1 () . 



uf -Inlmli. C.P( 1 .L. Oom- 



t&tOTUre* r.-brnl lobes*. l'< I Ji-ntdcrn-bruin. <<!'>. 



UlobQllM. N-ruli. ' Ji'.nic nuclei. <>.D. 



Dwawatiofr bundle let, <M. <>|.tic tract. 



rTvbrnl 1.b,.. T.O, l'rit<.< . r, hruiu. 



l.fin. i wo smaller iirunpili- masses con- 

 in tin- mid-line : raeli pair givea ri-- on eitliei' >ide 

 U> a :ln tir-t ;ini unary IKTN <. The nature of the 



ML ompiirr tin-in \N itli tlie I'mivjlorm 

 lmlie,other\Mtli tln-:nl-nnary loin- ol InBOCte, In >u|port 



