Entozoa : an introduction to the study of helminthology, with reference, more particularly, to the internal parasites of man / by T. Spencer Cobbold.

  • Cobbold, T. Spencer (Thomas Spencer), 1828-1886.
Date:
1864
Catalogue details

Licence: Public Domain Mark

Credit: Entozoa : an introduction to the study of helminthology, with reference, more particularly, to the internal parasites of man / by T. Spencer Cobbold. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

    611/690 (page 49)
    2. 8piroj>tera sanguinolenta.—I am not aware that any one has distinctly indicated the presence of this parasite in dogs dying or destroyed in this country; but it appears to be tolerably frequent in France and Germany. I believe it to be identical with the round worm, which is known to be common in China, and not unfrequently to cause the sudden death of its canine host. Some years ago, a manuscript was placed in my hands, giving a detailed account of the ravages inflicted by these parasites; the paper, however, has been irretrievably lost. Professor Bennett, of Edin- burgh, has in his possession a Chinese dog's heart which had burst, during life, from the pressure occasioned by a large number of these parasites lodged in the ventricles. One of the specimens presented to me by Dr. Bennett measures exactly ten inches in length. Dr. J. Lamprey has also found Entozoa in the cavities of the hearts of dogs in China. In the year 1813 a round worm, probably referable to this species, was found in the heart of a dog at Paris; and there is some probability that the microscopic hgematozoa, first discovered by Grube and Delafond in the blood of dogs, are genetically related to this species. Other remarks upon this point will be found further on. 3. Doclimius trigonoceplialus.—This small parasite is probably not uncommon in this country; but it is either frequently over- looked, or disregarded on account of its apparent unimportance. It is not likely that the migrating progeny are the source of the verminiferous condition of the blood just alluded to. Its pre- valence is certainly very variable in different countries or districts; but the only accurate observations bearing upon this point are those given by Dr. Krabbe in his recent Danish work.* Out of 500 dogs which he had examined (after death) at the Royal * Helmintliologiske Undersogelser i Danmark og paa Island, med sserligt Hensyn til Btereormlidelserne paa Island. Af Dr. med. H. Krabbe. Kjoebenhavn, 1865. [The above facts are taken from the Danish work, for a copy of which I am iiidebted to the distinguished author. Soon after I had, with no small labour, translated part of this treatise, a French edition of this book appeared. Dr. Krabbe has likewise, through M. Blanchard, communicated a resume of his able researches to the French Academy.] 7