THE RELATIONS OF METABOLISM TO FOOD-SUPPLY. 141 
The following figures, obtained by the same investigators * in 
later experiments, are taken from Wolff’s compilation: + 
ae Digested. Gain of 
Weight, erate _ Nitrogen, 
Kgs. etal on-nitrogenous , 
peng, Nutrients, Grms. 
1860-61. 
Ox I. Period 5.......... 514 315 2435 0 
wu anne: Nearer eens 531 405 4090 + 9.6 
oe 6 AG ha does 533 375 4980 +24.8 
Ox II. Period 6.......... 625 280 3060 + 9.6 
“ Ee UD apie x tases 643 435 4590 +14.4 
1865. 
Ox J. Experiment 1...... 638 395 4995 + 0.5 
ae oe e are 643 410 3610 — 0.8 
e ne OS exeeas 661 400 3620 + 4.0 
Ox II. ae Drederdien’ 701 445 5540 — 6.4 
a “e Bisa t ek 715 390 6060 + 3.2 
G. Ktthn’s extensive investigations at Méckern.{ together with 
subsequent ones by Kellner,§ afford the following data for the 
periods in which the ration was approximately a maintenance 
ration: 
o ; In Digested Food. Gain of 
Weight, _ | Metabolizable | po siisal 
aa fom ae , Grms. ” 
Kihn’s Experiments: 
Ox II. Period 1.......... 632 413 16388 + 0.1 
aa 6b Cun Jum! lorcet rears 632 338 17986 — 2.6 
ON OE AG Sis cases So aie 631 339 18077 — 0.5 
fOTV,. SE AD ses ans 2 623 320 17125 — 5.7 
ONG CO A oa cherad oa 602 451 15072 + 8.5 
etal. OME! SEL eh Siac estat Saas 644 458 15872 + 6.3 
BOX. Ee eden ate 672 540 17416 + 3.3 
Kellner’s Experiments: 
Ox As aoc akarena takes 620 440 16322 + 6.2 
OD beAESEa aae 3 barns buss SRE ae eats 612 213 15447 —14.6 
nee ee ee re 748 343 13716 —13.8 
ee rere en ee 750 696 18655 — 2.8 
OTs we Sere hr helecene ies 858 665 24558 + 5.1 
* Beitriige, etc., Heft II., and Neue Beitriige, ete. 
+Ermihrung landw. Nutzthiere, pp. 406-410. 
t Landw. Vers. Stat., 44, 257. 
§ Ibid., 47, 275; 50, 245. 
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