TECHNIQUE OF EYE DISSECTIONS 



a warning to be careful not to injure the pul- 

 ley of the superior oblique, and to be careful 

 not to cut away the inferior oblique. The in- 

 ferior oblique will be found to be near the 

 " pulley. " If the dissection is not carried 

 too close to the origin of the recti muscles, all 

 the muscles may be kept in place. 



If the eye has not been previously subjected 

 to the hardening influence of formaldehyde, it 

 may be put into a 5 per cent, solution, and at 

 the end of ten or twelve hours the muscles 

 will have become rigid. They can then be bet- 

 ter studied, and may be kept indefinitely. 

 (Fig. 60.) 



119 



