Experiments on the metabolism of matter and energy in the human body / By W.O. Atwater, PH.D., and F.G. Benedict, PH.D., with the cooperation of A.W. Smith, M.S., and A.P. Bryant, M.S.

  • Atwater, W. O. (Wilbur Olin), 1844-1907.
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Experiments on the metabolism of matter and energy in the human body / By W.O. Atwater, PH.D., and F.G. Benedict, PH.D., with the cooperation of A.W. Smith, M.S., and A.P. Bryant, M.S. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

    42/124 (page 36)
    namely, the uniforin absori)tion of food in the alimentary canal, is not correct, we ba\'e no means whatever for determining^ the variations and tliere is notliing else to do but assume the regularity. But we have the actual data for calculating the quantities of nitrogen, carbon, hydro- gen, and water-free substance excreted in the urine each day and, ] niMkiiii,^ the nssnmption regarding nitrogen lag mentioned above, the method of calculation here used seems logical. Tablk il.—Amounts and vomposilion of urine—Metabolism experiment No. 5. , Date. I'erio.l. Amount. Specific gravity. Nitrogen. (Jarbon. 1897. May 4-5 Orams. 297.8 871.3 698.9 220.1 1.026 1.011 1.011 1.019 Per cent. 1.52 .77 .81 1.52 Grams. 4.53 6.71 5.66 3.35 Per cent. Orami. 7 p.m. to 1 a. m Total 2, 088.1 2, 088.1 20.25 20.25 13.04 Total by composite 1.017 .97 5-fl 345.5 795.7 932.9 218.7 1.015 1.011 1.008 1.017 .91 .75 .58 1.32 3.14 5.97 5.41 2.89 7 p.m. to 1 a. in 1 Total 2, 292. 8 2, 292. 8 17.41 17.43 11.21 1.013 .76 J I ft-7 532.8 1,404.5 245. .-i 1.014 1.012 I.OIG .81 .66 1.20 4.32 9.67 3 17 1 p. m. to 7 p. m ^ 7 p.m. to 1 a. ni.i Total 2,242. 8 2,242.8 17. 10 17.27 11 05 Total by i'oniposite 7 a. III. I 1 p. Ill 1.014 .77 7-8 405. 7 727.2 914.0 4.00.2 1.016 1.010 1.010 l.OU) .96 .65 ,57 .80 3.89 4.73 5.21 3.60 7 p. in. to 1 a. ni 1 a. 111. to 7 a. Ill Total ;.. 2, 497. 1 2.497.1 17.43 17.48 11.22 Total by coiiiimsito Total for 4 days, by 1.011 .70 9,120.8 9,120. 8 72.25 72.43 f'ompoBiti! for 4 ilays.. .79 0 51 46. .52 8-0 351.4 2,')0. 0 264.1 441.6 1.022 1.027 1.016 1.012 .87 1.30 1.09 1.06 3.06 3.25 2.88 4.68 1 i>. III. to 7 ]>, 111 7 p. ni. to 1 a III 1 a. Ill to 7 a. Ill ToUl 1, 307.1 13.87 8.03