133 



A RESPIRATION CALORIMETER. 



ELECTRICAL CONNECTIONS ON THE TABI.E. 



The scheme of the various electrical connections on the observer's 

 table is given in figure 38. 



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FIG. 38. Electrical Connections on the Observer's Table. All electrical connections are, for con- 

 venience, brought to the observer's table. The rheostat controlling the heating circuits, the 

 mercury switch, the thermal junctions and thermometer circuits, and, at right, connections 

 for storage battery for use in electrical check experiments and for magnetizing the fields of 

 the bicycle ergometer are shown. 



