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EXPERIMENTAL PHYSIOLOGY 





Fm. 64. DIAGRAM OP MERCURY KYMOGRAPH ARRANGED FOR AN EXPERIMENT, a, BENT GLASS 

 TUBE CONTAINING MERCURY FORMING THE MANOMETER ; 6, ALUMINIUM FLOAT WITH ROD, 

 BENT AT RIGHT ANGLES AND ENDING IN A WRITING POINT ; c, SMALL WEIGHT ATTACHED TO SILK 

 THREAD SUSPENDED ABOVE WRITER AND SERVING TO KEEP IT AGAINST THE SMOKED PAPER ; 

 d, THREE-WAY STOPCOCK ; <?, ARTERY CANNULA ; /, BOTTLE OP SODIUM CARBONATE SOLUTION ; 

 g, BICYCLE PUMP. 



