. Tri-State medical journal. I presume to pre-sent the result of my observations, be-lieving this parasite to have received lit-tle notice in Iowa. It seems of sufficientimportance to be worthy your attention. In 1717 Lancisi said that parasitesenter the blood of man and cause mal-aria; but not until 1881 was this dem-onstrated by Laveran in Algiers, whodescribed three forms of an observers have since extended thestudy, until to-day the life of this parasite while in the blood is well knownand its casual relation to malaria well established. The following remarksbeing mainty c
. Tri-State medical journal. I presume to pre-sent the result of my observations, be-lieving this parasite to have received lit-tle notice in Iowa. It seems of sufficientimportance to be worthy your attention. In 1717 Lancisi said that parasitesenter the blood of man and cause mal-aria; but not until 1881 was this dem-onstrated by Laveran in Algiers, whodescribed three forms of an observers have since extended thestudy, until to-day the life of this parasite while in the blood is well knownand its casual relation to malaria well established. The following remarksbeing mainty confined to personal observation, limited to some fifteen cases,leave unnoticed much that has been observed on the subject by Osier, Coun-cilman, H. Vandyke Carter and other students of Europe and the easternUnited States. Having prepared specimens of the blood from a series of malarial casesin the usual manner, the following forms of the haematozoan were found :First and most commonly was seen an ameboid body within the red. 220 Haematozoan of Malaria-Clarke. blood corpuscles. This body was transparent, colorless, jelly-like, andabout one-fourth to three-fourths the size of the containing blood cell. Attimes two or three parasites were seen in one blood corpuscle. At timesthe organization was homogeneous, but more commonly it was suppliedwith numerous pigment granules which showed active Brownian granules also changed position by the protoplasmic movement of theorganism itself. When the parasite was without the containing corpusclewas little changed, but the blood cells containing the pigmented organismswere larger and paler than normal red corpuscles. Such observations ledme to conclude that the granules of the protozoan were the altered haema-globin of the blood disc, and this seemed the key to the production of theanaemia of malaria. At times this same ameboid organism was seen free in the plasma. Itunderwent ameboid movements which continued for two hours on th
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmedicine, bookyear1895
