Volume 2

Animal chemistry with reference to the physiology and pathology of man / by J. Franz Simon ; translated and edited by George E. Day.

  • Johann Franz Simon
Date:
1845
Catalogue details

Licence: Public Domain Mark

Credit: Animal chemistry with reference to the physiology and pathology of man / by J. Franz Simon ; translated and edited by George E. Day. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

    393/584 (page 377)
    absent, as, for instance, bile; or, lastly, substances whicli are altogether foreign to the normal secretions, are mixed with the feces, as albumen, blood, &c. In the case of diabetes alluded to in p. 296, I carefully ex- amined the feces. They contained no sugar, and were chiefly reraarkahle for their large amount of solid fat. Two or three pultaceous stools, averaging collectively 18’5 ounces, were passed daily. They gave ofl a very disagreeable odour, and were of a grayish clay colour. Alcohol digested with this fecal matter became coloured brown, and extracted a large quantity of fat, extractive matter, and a httle bilin. On treating the portion insoluble in alcohol with water, a small amount of water-extract, almost devoid of taste, was taken up. The insoluble residue yielded, on incine- ration, an odour of burned horn or glue, and contained a large amount of niti’ogen.^ A quantitative analysis showed that the 18‘5 ounces of fecal matter contained : Analysis 151. Whole quantity. In 100 parts. oz. grains. Water .... 12 312 Solid constituents 5 408 Fat .... 2 0 340 Bilin and extractive matter soluble in I alcohol . . . J 0 56 20 Water-extract 0 56 20 Alkaline salts 0 182 ■) 6-5 Carbonate of lime 0 70 U04 2-5 Earthy phosphates and peroxide of iron . 0 II2J 4-0 Insoluble nitrogenous matters 2 359 47-0 I have attempted, in accordance with the plan laid down in the appendix to Liebig’s ‘ Animal Chemistry,’ to compare the amount of carbon, nitrogen, and hydrogen in the food and in the excretions. The ingesta consisted of: 8 oz. of dry gluten bread. 11'5 „ dry meat. 2 ,1 dry egg. 2 „ cod-liver oil. 23'5 ounces. ‘ [This is entirely opposed to the experience of Lehmann, who states that the fajces of diabetic patients frequently yield a mere trace of nitrogen. Lehrbuch der physio- logischen Chcmie, 1842, p. 312.]