TECHNIQUE OF EYE DISSECTIONS 



from the optic nerve. Filling the half with 

 water will tend to separate these strands, 

 which are optic-nerve elements. 



After the removal of the retina, the iri- 

 descence of the choroid (tapetum lucidum) 



Fig. 13 The lighter area is the 



field of iridescence of 



the choroid. 



(Fig. 13) may be examined with a, hand lens, 

 or, after its, removal, a piece may be cut 

 and placed under a microscope. This irides- 

 cence is, of course, not present in the human 



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