834 
ON THE ELIMINATION OF UEEA AND HEINAET WATEE. 
the bowel. It is probable that this would elucidate many states of disease, and explain 
some of the anomalies which still exist as to the relation of urea to food. 
Explanation op the Plates. 
PLATE XXXII. 
Pigs. 1 & 2. Examples of alternations and waves in the daily elimination of urinary water. 
Figs. 3 & 4. The daily quantity of urea, and the amount of urea in each fluid ounce of 
urine with increasing decades of ounces of urine. 
Fig. 5. Monthly averages, during two years, of the daily elimination of urea and urinary 
water, with the atmospheric temperature and pressure. 
Fig. 6. Eelations of atmospheric temperature to the elimination of urea on the same 
day and the succeeding day. 
Fig. 7. Amount of urea excreted on each day of the week. 
PLATE XXXIII. 
Daily observations, throughout the year, on the excretion of urea at four periods of 
the day, compared ^vith the mean daily temperature at Greenwich. 
PLATE XXXIV. 
Hourly elimination of urea and urinary water, and the quantity of urea in each 
ounce of urine. 
Hourly elimination of urea and urinary water at each quarter of an hour. 
Homiy elimination of urea and urinary water, and the rate of pulsation during 
a day of fasting, except from water, which was drunk at four periods of the 
day. 
Daily weight which, with a constant of 13 stones, represented the weight of the 
naked body. 
Hourly elimination of urea and urinary water under the influence of water, tea, 
cofiee, and bread only. 
The effect of drinking water before breakfast upon the quantity of urea and 
urinary water eliminated at each quarter of an hour. 
Delation of atmospheric pressure to the elimination of urea on the same day, 
PLATE XXXV. 
Urea evolved by four prisoners on days of treadwheel, light labour, and Sundays, 
compared with the mean daily temperature at Greenwich, with ordinary and special 
diets. 
PLATE XXXVI. 
Contrast of the daily quantities during two years in the elimination of urea and urinary 
water, and the atmospheric temperature and pressure at Greenwich, with the daily weight 
of the body during one year. 
Fig. 1. 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6. 
Fig. 7. 
