464 



LIQUID PARTS OF ANIMALS. 



In males, 2 '7 94 Ibs. avoirdupois. 



In females 3-024 Ibs. 



Mean, . 2-909 Ibs. 

 This agrees nearly with the result of Lecanu. 

 The quantity of urine depends partly upon the quantity and 

 nature of the food. The average quantity is greater when the 

 food is generous and abundant than when it is meagre and scan- 

 ty. Chossat found, however, that the quantity of urine voided 

 was greater when the food was bread than when it was restrict- 

 ed to flesh meat. He found also that the secretion of urine is 

 dimished in the evening. But to this there must be many ex- 

 ceptions ; for I did not find it so in the cases that came under 

 my observation. 



A good deal of loose statements have been made respecting 

 the quantity of urine voided at different times of the day, and 

 respecting the specific gravity of the urine when so voided ; per- 

 haps the following table may not be altogether useless. The ex- 

 periments were made on the urine of a healthy individual be- 

 tween 50 and 60 years of age, and complete reliance may be 

 placed upon the results, as every precaution was taken to insure 

 accuracy : 



September 23d. 



September 24th. 



Total, 



94-85 or 



3-403 Ibs. 

 Mean, 



Total, 



1-01249 



96-7 or 

 3-47 Ibs. 

 Mean, 



1-01301 



