Animal Inoculations 225 



the skin picked up with forceps, a snip made through it, and the points 

 of the scissors introduced for an inch or so and then separated. By 



Fig. 74. Latapie's animal holder for rabbits, guinea-pigs, and other 

 small animals. This form of holder is in general use at the Institute Pasteur in 

 Paris. 



this manoeuver a subcutaneous pocket is formed, into which the 

 tissue is easily forced. The opening should not be large enough to 

 require subsequent stitching. 



Fig. 75. Guinea-pig confined in the holder. 



When tissue fragments or collodion capsules are to be introduced 

 into the abdominal cavity, the animal should be anesthetized and 



Fig. 76. Mouse-holder. 



a formal laparotomy done, the wound being carefully stitched 

 together. 



