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BACTERIOLOGY 



loose. This particular sort of suture does not pass through 

 the skin, but, instead, the needle is introduced into the 

 subcutaneous tissues along the edge of the incision. In this 

 case they are to pass into the abdominal cavity and out 

 again, entering at one side of the line of incision and leaving 

 at the other, as indicated by the solid and dotted lines in 

 Fig. 46. (The figure indicates the primary opening through 

 the skin. The longitudinal dotted line shows the opening 



FIG. 46 



Diagram of skin incision and sutures in laparotomy on animals. 



to be made into the abdomen; the transverse dotted lines, 

 with their loose ends, represent the sutures as placed in 

 position before the abdomen is opened; it will be seen that 

 these sutures in all cases pass through the subcutaneous 

 tissues only and do not penetrate the skin proper.) 



The opening through the remaining layers may now be 

 completed; the bit of tissue is deposited in the peritoneal 

 cavity, under precautions that will exclude all else, the 



