372 SUMMARY OF REPORTS, ETC. 



with this difference, that many of them lose health, 

 or suffer some disablement, and so die or are 

 killed. But they must not be put to pain after 

 the operation ; nor must they be kept in pain. 

 Whatever is done, must be done under anaes- 

 thesia : and there must be no further experi- 

 ment, no observations made through the wound 

 after the anaesthesia passes off. If morphia be 

 used after ether, it is used in such a dose that the 

 animal may be, like a man or woman, in danger 

 of dying from an over-dose of the drug. On all 

 these points the 1901 Report is decisive: — 



"The operations are performed aseptically, 

 and the healing of the wounds, as a rule, takes 

 place without pain. If the antiseptic precautions 

 fail, and suppuration occurs, the animal is required 

 to be killed. It is generally essential for the 

 success of these experiments that the wound should 

 heal cleanly, and the surrounding parts remain in 

 a healthy condition. Experiments involving the 

 removal of important organs, and even of parts 

 of the brain, are performed without causing pain 

 to the animals ; and after the section of a part 

 of the nervous system, the resulting degenerative 

 changes are painless. 



''In the event of a subsequent operation being 

 necessary in an experiment performed under Cer- 

 tificate B, or B linked with EE, a condition is 

 attached to the license requiring all operative 

 procedures to be carried out under anesthetics of 

 sufficient power to prevent the animal feeling pain." 



It is evident, from these Reports, that good 



