76 BACTERIOLOGICAL EXAMINATION 



ably of glass, with a good-sized needle, larger than the 

 medicinal hypodermic type, is used. The syringe and 

 needle may be sterilized by boiling, with a pinch of 

 soda, for ten minutes or by autoclave, the best means 

 provided the operation be done immediately. Metal 

 parts will rust if the syringe and needle are sterilized 

 by moist heat and allowed to dry out. The hot air 

 oven is not suitable for sterilizing in this case. 



