Further observations on micro-filariae : with descriptions of new species / by Patrick Manson ; communicated (with a prefatory note) by the President.

  • Manson, Patrick, 1844-1922.
Date:
[1880]
Catalogue details

Licence: Public Domain Mark

Credit: Further observations on micro-filariae : with descriptions of new species / by Patrick Manson ; communicated (with a prefatory note) by the President. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    [Reprinted from The Journal of the Queicett Microscopical Club, Vol. VI., Page J3i>, No, 44, August, 1880.] FURTHER OBSERVATIONS ON MICRO-FILARI^E, WITH DESCRIPTIONS OF NEW SPECIES. By PATRICK MANS OK, M.D., Amoy. Communicated (with a Prefatory Note) by the President. {Read June 25th, 1880.) PLATES VIII, IX, X. The interesting letters which I have now the honor to submit to the Club must be regarded as a continuation of Dr. Manson’s former communication. Not merely does Manson refer to an abundant confirmation of his discovery respecting the periodical emigration and immigration of the human larval filarise, but he here supplies us with a new fact, pointing apparently to the lymphatic system as the probable home or head-quarters, so to say, of the sexually mature worm (Filaria Bancrofti). For myself, this “ find ” has especial interest, inasmuch as it was the circum- stance of my detection of the chorional envelope of an ovum in blood sent from Australia and my communication of the fact to Dr. Bancroft that led to the original discovery of the sexually mature worm. This has been acknowledged by Bancroft. Curiously enough, in a letter received only a few days back, Dr. Sonsino (who has largely contributed to our knowledge of the filaria}, as they occur in Egypt), requested my opinion as to the precise residence or “ ordinary abode ” of the sexually mature Filaria. I think Manson’s find tends to confirm the view that I have already entertained, if not decidedly expressed, that the home of the adult worm is to be found in the lymphatic channels. I own that the circumstance of my original “ find ” is somewhat puzzling, but the presence of the ovum in blood sent to me from Australia may have been accidental. Dr. Bancroft’s detection of the adult worm in an enlarged gland or “ lymphatic abscess ” and Dr. Manson’s present “ find ” point to the conclusion just advanced. Not only as regards size, but also as regards contour, do the empty ova detected by Manson and