RESPIRATION. 117 



(22) Make a quadruple tracing: stethogram, chrono 

 gram, intra-thoracic pressure and intra-abdominal 

 pressure. 



(23) Sum up the work of the day in a series of con 

 elusions. 



(24) Dispatch the rabbit with chloroform, noting the 

 respiratory changes induced by the lethal dose of 

 chloroform gas. 



