The retrospective address, upon medical science and literature, delivered at the fourth anniversary meeting of the Provincial Medical and Surgical Association held at Manchester, July 21st, 1836 / by John Green Crosse.

  • John Green Crosse
Date:
1836
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Licence: Public Domain Mark

Credit: The retrospective address, upon medical science and literature, delivered at the fourth anniversary meeting of the Provincial Medical and Surgical Association held at Manchester, July 21st, 1836 / by John Green Crosse. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    Some physiological illustrations may be drawn from the case related by Dr. Harrison,* of a lunatic pantophagist, who swallowed numerous pieces of iron. The most remarkable of contributions to our knowledge is the discovery of a microscopic entozoon infesting the human body, by Mr. Owen^f who ranks amongst the first of British zoologists. Upwards of fifteen distinct kinds of internal parasites of the human frame were known before, but none of so minute a size, nor existing in such astonishing num- bers, as this new species, the Trichina spiralis; in one portion of muscle which I possess there are, within a square inch, probably between one and two thousand. These entozoa have been found in all the voluntary muscles, and also in the semi-volun- tary or respiratory, but, I believe, in no other texture of the body. This striking discovery has rapidly spread through the scientific journals of all countries, and the phenomenon is of such frequent occurrence, that already the subject has received further elucidations from several of our countrymen.;]; • Dublin Journal of Medical and Chemical Science, September, 1835, p. 8.—Numerous large pieces of iron, one four or five inches in length, were found in the colon and different parts of the intestinal canal, the contents of which were dark and ferruginous. The liver partook of the same deep ferruginous colour, whilst all the other solid viscera were free, a proof of the venous absorption by the vence portce. t Transactions of the Zoological Society, vol. I. p. 315.—Twenty-five of these entozoa were found in the tensor tympani muscle! X Dr. A. Farre and Mr. Paget, at St. Bartholomew's Hospital; Mr. Hilton, at Guy's Hospital; Mr. T. B. Curling, at the London Hos- pital ; Mr. Wood, of Bristol: the contributions of these gentlemen are in the London Medical Gazette for 1835-6. Dr. Harrison CDublin Journal of Medical and Chemical Science, vol. VIII. p. 185,) and Dr. Knox f Edinburgh Medical and Surgical Journal, vol. XLVI. p. 89) have also observed these entozoa in the dissecting room, and minuteiv described them.
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