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.

    45/124 (page 39)
    Table 11.—Record of water in ventilatimj air current—Metabolism experiment No, 5. Period. Volume of ventilating -g- air current. ■-' Water per liter— (e) U u a i i (3) |1 = a 0 bo 'S a ga 0 a {h) Date. (6) be a a o o a a M (c) u ■3 SB a 0 6* 1 (d) n '3 11 c3 3 . g be 1 .a « . l| o 1897. ! May 4-5 7a.m.tolp.m 1 p.m. to 7 p.m 7p.m. to ] a.m 1 a.m. to 7 a.m Liters. 25,936 26, 263 26, 397 26,154 Mgg. 1.171 1.050 1.038 .874 Mgs. 1.329 1.210 1.230 1.006 Mgs. 0.158 .160 .192 .132 Gram». 4.1 4.2 5.1 3.4 Grama. 233.8 237.2 252.1 223.6 Grams.' Grams. 194.4 — 4.8 — 71.0 ' Total 104, 750 16.8 946.7 118.6 1 1,082.1 5_6 ' 7 o m +r> 1 T. m 26,158 1.022 26,885 . 992 27,110 I 1. Oil 26,792 1 .924 1.118 1.284 1.215 1.178 .096 .292 .204 .254 2.5 7.8 5.6 6.8 220.6 244.9 275.2 209.8 1 p.m.to7 p.m 7p.m. to 1 a.m 1 a.m.lo 7a.m Total 56.7 62.2 50.9 106, 945 22.7 1 950.5 169.8 1,143.0 7 a.m.to 1 p.m 1 p. m. to 7 p. m 7 p. m. to 1 a. m 1 a. m. to 7 a. m Total 1 040 1 212 6-7 26, 426 26, 861 27, 273 26,100 179. 4 6 1 950 2 .922 .895 .786 1.134 .212 1.115 .220 . 941 . 155 5.7 6.0 4.0 245.4 227.6 196.3 26.7 55.9 — 32.8 106,660 20.3 891.5 49.8 961.6 7 a.m.to 1 p.m 1 p. m. to 7 p. m 7p.m.to 1 a.m 1 a. m. to 7 a. m Total 1 7-8 25 577 ' Qfi 1.187 1 .301 1.064 .166 1. 074 . 261 . 927 . 234 7.7 4.3 6.9 6.3 202.6 218.0 272.1 226.3 26,045 26,240 26, 938 .898 .813 .693 17.5 28.2 63.2 104, 800 25.2 919.0 108.9 1, 053.1 Total for 4 days. 423,155 85.0 Is. 707.7 447.1 4,239.8 1 1 Upon the surface of the absorbers, see p. 53 under description of experiment No. 6. The details of the calorimetric measurements in these experiments are far too extensive to be given here. Their nature is explained and illustrations are given in another j)ublication.' The fundamental data are given in Table 12. This shows in column a the amount of heat measured in calories by the current of water at the average range of temperature of the water currents shown in column h. In column d this heat is corrected to calories at 20° C, the temperature to which all the measurements are reduced. Columns e to g show the correc- tions for the heat capacity of the apparatus and for the temperature of food and dishes. Column h shows the quantity of water vaporized in the calorimeter and column / gives the amount of heat calculated as having been used to vaporize this water and thus carried out with the 1 U. S. Dept. Agr., Office of Experiment Stations Bui. 63.