INGESTION OF WATER. 149 



the Erlanger sphygmomanometer. A general inspection of these 

 results shows nothing significant in the changes in either pulse or 

 blood pressure as a result of the ingestion of water. 



In experiments of this kind one might maintain that it would be more 

 logical to attempt a correlation of the metabolism with the total 

 quantity of urine passed rather than with the amount of water taken, 

 since it is conceivable that the mechanical work of the processes 

 involved would be shown more clearly by the volume of urine excreted. 

 As would be expected, the volume of urine increased considerably 

 when large quantities of water were consumed, but the amounts of 

 urine excreted were usually not abnormal, and we were unable to dis- 

 cover any definite correlation between the volume of urine and the 

 total metabolism. 



