560 APPENDIX. 



mined having been kept too long to preserve their 

 exact shape and size. The vitreous humour ad- 

 hered to the retina at the entrance of the optic 

 nerve. The optic nerve is very long in some 

 species, owing to the vast width of the head. 



END OF VOLUME II. 



: Printtd by T. Daviwn, Ltmbard-itrttU 



