Method 



of the seared areas by means of bone-cutting forceps. The 

 neck is dissected loose from the skin and a large square of 

 sterile gauze is inserted beneath it. The lumbar region is 

 dissected up for a few inches and a similar piece of gauze 

 placed beneath it. Then a piece of telegraph wire about 14 

 inches long, bent into a handle at one end and having a small 

 wisp of cotton twisted about the other end, is used to push the 

 cord out of its canal. The spine is steadied by a pair of lion- 

 jawed forceps. 



Fig. 129. Removal of the spinal cord from a rabbit (Stimson, Bull. No. 

 65, Hygienic Laboratory). 



An assistant catches the cord with forceps as it emerges 

 from the cervical opening and lifts it out. The spinal nerves 

 are torn off during this procedure, and the membranes stripped 

 off, leaving a clean sterile cord. A silk ligature with one long 

 end is placed around the upper end, and another, just below the 

 middle of the cord, which is then cut into two pieces just above 

 the lower ligature. A small piece is cut off of the upper end of 

 the upper portion and placed in a tube of bouillon, which is 

 incubated as a test for sterility. The cords are hung in the 

 drying bottle. 



The cords thus secured are used for perpetuating the 



