APPENDIX. 



385 



less and under the influence of the anaesthetic, take 

 it up in a cloth, hold the hind legs between the 

 third and fourth fingers, and with the fore-finger 

 press down the head. Cut transversely through the 

 skin a little behind the skull with a pair of scissors, 

 carrying the incision only a short way on either side 

 of the median line; make a slight incision also 

 through the skin in the median line. The end of 

 the occipital bone can then be easily made out; it is 

 just above the level of the anterior edges of the 

 scapulae. With a sharp scalpel cut through the 

 muscles just behind the occipital bone and as nearly 

 as possible in the median line, so as not to cut the 

 vertebral arteries; the spinal cord will be exposed. 

 Thrust then a blunt stout needle into the brain and 

 move it about until the brain is quite destroyed. 



The following rough table may be useful to the student. 



L. 



25 



