SUBCUTANEOUS INOCULATION OF ANIMALS 233 



larger animals the form of holder shown in Fig. 44 is 

 commonly used. 



A very simple and useful holder for guinea-pigs con- 

 sists of a metal cylinder of about 5 cm. diameter and 



Fig. 45. 



The Voges holder for guinea-pigs. 



about 13 cm. long, closed at one end by a perforated 

 cap of either tin or wire netting. Along the side of 

 this box is a longitudinal slit 12 mm. wide that runs for 

 9.5 cm. from within 0.5 cm. of the open extremity of 

 the cylinder. The animal is placed in such a cylinder 



