SUBC UTANEO US INOCULATION OF ANIMALS. 199 



is simply a metal plate attached to a stand by a clamped 

 ball-and-socket joint, so that it can be fixed in any posi- 

 tion. It is provided with a spring-clip at one end that 

 holds the animal by the skin of the neck, and at the 

 other end with another clamp that holds the tail of the 

 animal. This holder is shown in Fig. 37. 



FIG. 37. 



Kitasato's mouse holder. 



For larger animals the form of holder shown in Fig. 

 38 is commonly used. 



My attention has recently been called to a very simple 

 and useful holder for guinea-pigs. 1 It consists of a metal 

 cylinder of about 5 cm. in diameter and 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 longi- 



1 So far as I am aware this apparatus has not been described. It has recently 

 been brought to my notice by Dr. Lydia Rabinowitsch, who informs me that 

 it was devised by Dr. Voges and herself in the Institut fur Infectionskrank- 

 heiten, Berlin, where it is now in use. It is with her kind permission that 

 this description is published. 



