EXERCISE I 



KHYTHMIC MOVEMENT AND TONE OF INTESTINE; INFLUENCE 

 OF ADRENAL EXTRACT ON INTESTINE, SPLEEN, AND ARTERIAL WALL 



1. See that your recording apparatus is in order, and that the recording 

 surface travels from right to left about 15 mm. a minute. Attach a rubber 

 or glass syringe to the rubber tube at end of the glass tube (g, text-fig. 1) on 



Text-fig. 1. Arrangement for recording movements of intestinal s^rip in 

 warmed Ringer-Locke fluid, g, tube for aerating the fluid and serving as 

 fixation for thread from intestinal strip; p, glass writing-point slung in sleeve end 

 of straw lever ; w, counterpoise for writing lever ; t, thermometer. The 

 vertical standard carrying both water-bath and recording lever rotates in its 

 base up to the small stop on the base, allowing adjustment to the recording 

 surface by a single movement. 



