INOCULATING INSTRUMENTS. 



Tii 



the wound through the before-mentioned aperture. The needle is 

 thrust under the skin, and the infective material injected by pressing 



Fig. 141. — Sterilisable syringe; ready for use 



Fig. 142. — Sterilisable syringe ; dismounted. 



on the button. The instrument is really only a kind of syringe tor 

 subcutaneous injection. 



