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. 



J:ND of VOLiJME II. 



London : Printed by t. Da*vhonf Itombard-street* 



3477 

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