The histology and histochemistry of man : a treatise on the elements of composition and structure of the human body / by Heinrich Frey ... Translated from the fourth German edition, by Arthur E.J. Barker ... and revised by the author. With six hundred and eight engravings on wood.

  • Frey, Heinrich, 1822-1890.
Date:
1874
Catalogue details

Licence: Public Domain Mark

Credit: The histology and histochemistry of man : a treatise on the elements of composition and structure of the human body / by Heinrich Frey ... Translated from the fourth German edition, by Arthur E.J. Barker ... and revised by the author. With six hundred and eight engravings on wood. Source: Wellcome Collection.

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

    149/698 (page 137)
    ■which it contains. Another peculiarity frequently observed, and which I myself am in a position to verify, is also very striking; the coagulum, namely, may become red on exposure to the air, a change of °colour probably depending upon the generation of the pigmentary principles of the blood through the action of the atmospheric oxygen. The amount of fibrin seems, moreover, to be liable to considerable variation. The albumen of lymph exists, like that of the plasma of the blood, in combination with soda as albuminate of sodium. Casein is missed as in the blood also. Ihe fatty matters, individually but slightly known, appear partly as neutral fats and partly saponified with soda. Their amount, like that of albumen, seems to vary considerably. Besides these, lymph contains also grape sugar and urea. As to the extractives which are here met ■with in no small amount, their nature has not been investigated. Chloride of sodium is very strongly represented among its mineral constituents, as well as the carbonates of the alkalies; besides which the usual combinations of phosphorus and sulphuric acid of the system all occur in lymph. Finally, iron also makes its appearance here Although the proportion of water in this fluid always remains larger than that m the liquor sanguinis, it is still subject to very considerable variation -Lymph contains no oxygen, or only traces of it; it does, however possess nitrogen in small amount, and carbonic acid seems to be present in great abundance. A portion of the latter is held in loose combination another portion can only be displaced by acids Ab>dn^]l°hiifc T0Uld Sfm that possesses a composition .dlied to that of the plasma of the blood, botli of them apparently con taming exactly the same proportion of salts (AW). But in general it may be stated to be richer m water and extractives, but poorer in albumen, fats, and salts than the liquor sanguinis Not long since analyses were undertaken°by C. Schmidt in which for the first time, the coagulum and serum of lymph were separately treated The lymph to be analysed was obtained from the neck of a foal which pLitioent-Prem 7 W6U Mwith ha^: ^owed the fidlwi^tt 1000 parts of lymph contain Serum, . . . qkk.9 Coagulum, 44.g 1000 parts of coagulum contain1000 parts of serum contain Water, Fibrin, Albumen, . . j Fats and fatty acids, Other organic matters, I Salts, 907-3 48-7 34-3 9-7 Water, Albumen, f ats and fatty acids, Other organic matters, Salts, 957-fi 320 • 1-2 1-8 . 7-4 °Wod a similar, (comp. § 75). ’ 1 een ce^s and plasma, as in the blood <** ~ “ slightly or milky than the fluid last mentioned^7als°ilt™ more cloudy constituents, so that its specific gravity Hes beU^7Vlf aid ^ *0^.