THE SAGITTAL OR VERTICAL SECTION 

 OF THE EYE 



PLACE an eye in a 5 per cent, solution of 

 formaldehyde for about two weeks. If the eye 

 is kept in that solution longer than that time, 

 the lens is apt to become so hard that in cut- 

 ing it the capsule and suspensory ligament 

 will be torn, and the lens will then become 

 detached; if for a shorter space of time, the 

 lens and other tissues will be so soft that all 

 may be so badly torn or lacerated, that a per- 

 fect specimen will not be possible. 



It sometimes happens that in keeping a 

 number of eyes together in a vessel for the 

 purpose of hardening them in the formalde- 

 hyde solution, the corneas of some will be 

 crushed in. For this dissection, select an eye 

 that has the cornea, in perfect condition. 



Remove all the outside tissues with the 

 scissors, being particular to have the region 

 immediately surrounding the optic nerve per- 



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