RECORDING INTESTINAL CONTRACTIONS 



279 



write just below the bladder (the pointers must be able to 

 pass each other), below this are the blood-pressure, respi- 

 ration and base line. The injecting burettes contain pilo- 



Elashc rubber 

 band fo attach 

 finqer cot' 

 'cdftte/er 



Fig. 246. Arrangement of apparatus for recording contractions of the intestine. (For 



discussion see text.) 



carpine (one cubic centimeter equals one milligram) and 

 adrenaline. 



Take two inches (or less) of normal record and then in- 

 ject one cubic centimeter of pilocarpine. A pronounced re- 

 sult should be obtained in all the tracings. Do you get 



