16 



COMPOSITION OF FECES AND URINE. 



The feces for the experimental period were collected and analyzed 

 by the usual methods. The separations of the feces at the beginning- 

 and end of each period were effected l)y means of charcoal in gelatin 

 capsules as a marker. " The data regarding the composition of the 

 feces are here tabulated. 



Table '6. — Composition of dry matter of feces from digestion e.rjteriinetits irith Oregon and 



Okhdioma. irheat tiread. 



I 



Sam- 

 ple 

 No 



Whence obtained. 



291 

 29'2 

 293 

 308 

 309 

 310 

 32n 

 32(1 

 327 

 342 

 343 

 344 

 359 

 360 

 361 

 376 

 377 

 378 

 393 

 394 

 395 

 410 

 411 

 412 



Experiment No. 469. 

 Experiment No. 470. 

 Experiment No. 471 . 

 Experiment No. 472. 

 Experiment No. 473. 

 Experiment No. 474. 

 Experiment No. 475. 

 Experiment No. 476. 

 Exjieriment No. 477. 

 E.xperiment No. 478. 

 E.xperiment No. 479. 

 Experiment No. 480 

 Experiment No. 481 

 Experiment No. 482 

 Experiment No. 483 

 Experiment No. 484 

 Experiment No. 485 

 Experiment No. 486 

 Experiment No. 487 

 Experiment No. 488 

 Experiment No. 489 

 Experiment No. 490 

 Experiment No. 491 

 Experiment No. 492 



Protein 



(NX6.25). 



Fat. 



! Carbo- 

 hydrate.s. 



Per 



cent. 

 25.90 

 24. 05 

 25. 26 

 23.95 

 25.37 

 29.22 

 22. 41 

 21.57 

 32. 52 

 24. 88 

 28. 97 

 29.17 

 27.77 

 24.36 

 23. 87 

 22. 85 



22. 46 



23. 54 

 23. 90 

 22. 64 

 22. 30 

 30. 27 

 29.18 

 27.94 



Per cent. 

 38. 40 

 45. 80 

 41.75 

 31.59 

 27. 89 

 33. 3ti 



48. 53 

 48.44 

 36. 52 

 39. 12 

 31.98 

 29. 80 



49. 55 

 .50. 31 

 45. 20 

 49.93 

 52. 97 

 46.60 

 41.05 

 43.73 

 48.08 

 32. 45 

 31.11 

 30. 29 



Ash. 



Heat of 



combii.s- 



tion per 



gram. 



Per cent. 

 22.92 

 20.88 

 21.73 

 31.82 

 35. 42 

 27. 45 

 17.85 



19. 51 

 19.09 

 26. 68 

 31.34 

 27.21 

 15. 99 

 17.90 



20. 56 

 17.09 

 16.06 

 18.33 

 21.72 

 23. 65 

 22. 44 

 26. 45 

 29. 33 

 25. 58 



Calories. 

 4.500 

 4.457 

 4.500 

 4.619 



3. 960 

 4.229 

 4.578 

 4.295 

 4.438 

 4.830 

 4.124 

 4.261 

 4.804 

 4.447 

 4.510 



4. 726 

 3. 282 

 4. 452 

 4.540 

 4.200 

 4.930 

 4.874 

 4.330 

 4. 520 



The urine of each subject was collected during each experimental 

 period, beginning with 7 a. m. of the first day of the experiment and 

 ending at 7 a. m. of the first day immediately following the experi- 

 ment. The total amount and specific gravity of the urine and the per- 

 centage of nitrogen in it were determined for each day. These data 

 are here given : 



Taijle 4. — Amount, .'specific gravitij, and nitrogen of urine from digestion e.vperimenls 



irith Oregon and Oklahoma wheat bread. 



Whence obtained. 



Experiment No. 469: 



First day 



Second day 



Third day' 



Fourth day 



Experiment No. 470: 



First day 



Second day 



Third day 



Fourth day 



aV, S. Dept. Agr., Office of Experiment Station.s Buls. 21, p. 58. 143, pp. 66-76, 



