290 APPENDIX 



10.15 AM. Anesthetic stopped. Ligature released. 

 Animal depressed so that no anesthesia needed. 

 11.00 A.M. Difficult shallow breathing, temperature 

 35°. Rapid heart. 



12.45. Exit. Immediate autopsy showed liver, py- 

 loric end of stomach and small intestines markedly 

 congested. 



SHOCK PRODUCED BY BURNS 



A rabbit (No. 1 ) under ether anesthesia was burned 

 over the back by means of a hot iron. The burned area 

 was immediately removed and grafted onto the back 

 of another rabbit (No. 2) and the normal skin of the 

 latter was transferred to No. 1 , from which the burned 

 tissue had been removed. Rabbit No. 2 showed signs 

 of shock about two hours after the insertion of the 

 burned tissue graft, and died in shock after 68 hours, 

 while rabbit No. 1 showed but slight signs of shock 

 and made an uneventful recovery from its wound. 



A cat was slightly burned along the spinal region, 

 the burned skin dissected out and transplanted to a 

 second cat. The latter developed shock after four 

 days, probably due to delayed absorption. At autopsy 

 the post-mortem findings were typical of shock. This 

 experiment illustrates the necessity of keeping ex- 

 perimental animals under observation for several days 

 before passing judgment on the outcome of an ex- 

 periment. 



"SHELL SHOCK" 



8.15 A.M. A guinea pig was wrapped in a small cloth 

 bag and the latter bound to a stand placed within a 

 few centimeters of the revolving arm of a centrifuge 



