478 



Mr. W. North. The Influence of 



Experiment II, 1882. June 7 th to June 15th. 



The Nitrogen. — The work produced a very obvious increase on the 

 day on which it was done, which was continued and was even more 

 marked on the day following ; the average daily discharge before the 

 work was 15*22 grams, after the work 17'95 grams, despite this 

 increased excretion. The reserve at the end of the experiment was 

 only 1*54 grams less than on the day before the work ; in the previous 

 experiment the diminution in the reserve amounted to 1*23 grams. 



The Phosphoric Acid. — There was an excess of phosphoric anhydride 

 excreted over that ingested over the whole experiment amounting to 

 0*5 gram, a quantity probably well within the errors of experiment ; 

 still it is worthy of remark that the difference during the first four 

 days amounted to - 56 gram, which would seem to indicate the 

 previous diet as an explanation. 



The Sulphuric Acid. — As in the first experiment there is an 

 undoubted increase after the work, the excess amounting to 1*42 grams 

 over that which would have been excreted had the average of the first- 

 four days been maintained. 



Composition of Urine. 

 Experiment II, 1882. June 7 to Jane 15. 

 Table A. 



Date. 



Quantity. 



Sp. gr. 



Chlorides 

 as NaCI. 



Phosphates 

 as P 2 5 . 



Sulphates 

 as H 2 S0 4 . 



Nitrogen. 



June 7.. 

 „ 8.. 

 „ 9.. 



„ io.. 



„ 11.. 

 „ 12.. 

 „ 13.. 

 „ 14.. 

 „ 15.. 



c.e. 



900 

 1100 

 1440 

 1070 

 1100 



830 

 1100 

 1190 

 1290 



1018 

 1023 

 1025 

 1022 

 1026 

 1020 

 1025 

 1025 

 1023 



2 54 

 10 55 

 16-08 

 12 42 

 12 13 



7-58 



12- 47 



13- 78 

 14 36 



2-40 

 1-81 

 1-87 

 1-80 

 1-98 

 1-86 

 1-89 

 1-80 

 1-66 



2-92 



2 66 

 2-75 



2- 66 



3- 65 



3 02 

 2-55 

 2-88 

 2-79 



15-27 

 ]3-92 



13- 43 



12- 49 

 16 15 

 16 -31 



14- 98 



15- 46 



13- 59 



Totals . . 

 Averages 



10020 

 1113 



1023 



101 91 

 11-32 



17 -07 

 1-89 



25 88 

 2 -87 



131 -60 

 14-62 



