The diseases of tropical climates and their treatment : with hints for the preservation of health in the tropics / by J.A.B. Horton.

  • Horton, James Africanus Beale, 1835-1883.
Date:
1874
Catalogue details

Licence: Public Domain Mark

Credit: The diseases of tropical climates and their treatment : with hints for the preservation of health in the tropics / by J.A.B. Horton. Source: Wellcome Collection.

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

    42/708 (page 12)
    ]2 FEBRIS INTERMITTENS—AGUE. In a qualitative analysis of the bloody in a case of Leucocytliffimia^ with enlarged spleen, Scherer found, besides the normal constituents, .acetic and formic acids, lactic acid, gelatine, and hypoxanthia. There is a morbid alteration in the structure of the spleen, liver, and lymphatic glands, which may exist either separately or together; the enlargement of the spleen is the most constant. Of the origin of these elementary colls in the blood, Virchow thinks that,—-1. They may multiply in the blood by the division of pre-existing cells. 2. They may primarily be introduced into the blood through the lymph or chyle, which are conceived to convey the developed, as well as the undeveloped, globules, derived from the lymphatic .glands, the spleen, and its connecting tissue. That they are -formed on, and detached from, the walls of the blood-vessels has not--yet’been proved; but it appears that the increased proportion of the colourless corpuscles, with a corresponding diminution of the red in cases of the enlarged spleen, should dead us to apply the results of the researches of Kolliker and Hewson with respect to the function of that -organ. -Eolliker has proved that the spleen of man, as well as that of many vertebrated animals, under certain circumstances, pro- motes the destruction of red corpuscles. He “ supposes that they decrease in size, and become grouped together in round clumps, which acquire nuclei, and are enveloped so as to constitute cells filled with altered blood cor- puscles in various stages of disintegration; thus the substance of the contained blood corpuscles is then resolved into pigment granules of a golden-yellow.