Bodily Labour upon the Discharge of Nitrogen. 467 



Comparison of the Nitrogen, Phosphoric and Sulphuric Acids of the 

 Urine before and after the Work. Experiments of 1879. 



Daily Averages. 





Before work. 



After work. 



Differences. 



T 



No. I. — Nitrogen .... 



16 '48 



16 *87 



-39 



P 2 5 



2-97 



2-87 



o-io 



H 2 S0 4 



2-67 



2-56 



o-ii 



No. II. — Nitrogen .... 



14 "77 



17 *89 



3 '12 



P 2 5 



2-45 



2-41 



0-04 



H 2 S0 4 . 



2 *62 



3 -24 



-64 



No. III. — Nitrogen .... 



15-05 



16 -42 



1-37 



p 2 o 5 



2-12 



2-08 



0-04 



H 2 S0 4 



2-66 



2-75 



09 



No. IV. — Nitrogen. . . . 



13-52 



18-34 



4-82 



P2O5 



2-38 



3 23 



0-85 



H 2 S0 4 



2-37 



3-48 



1-11 



Balance of Nitrogen in Ingesta and Excreta. Experiments of 1879. 

 Experiment I, 1879. Work done March 9, 1879. 



Daily 



Differenes . . . 



Urine. 



Faeces. 



Total. 



Ingesta. 



150 30 

 16-70 



130-70 

 14-83 



18-09 

 2-01 



168 -39 

 18 71 



169-71 

 18-85 

 1-32 



No. II.— Totals 



Daily 



Differences . . 



16-08 

 2-01 



146-78 

 18-34 



150-85 

 18-85 

 4-07 



No. III.— Totals 



Daily 



Differences . . 



125 -94 

 15-74 



15-29 

 1 91 



141 23 

 17 65 



150 -85 

 18-85 

 9-62 



No. IV.— Totals , , 



Daily 



Differences . . 



132 -28 

 16 53 



16 87 

 2 10 



149-15 

 18-64 



150 -85 

 18-85 

 1-70 



Experiment I, 1879. 



Distance walked , 30 miles. 



Total time of journey 85 hours. 



Halts 1^ hour. 



Actual time of walking 7 hours. 



Average pace 4*28 miles per hour. 



Load carried 22 - 56 lbs. 



