Annual of the Universal Medical Sciences Volume 1895

Annual of the Universal Medical Sciences Volume 1895

List price: US$20.31

Currently unavailable

Add to wishlist

AbeBooks may have this title (opens in new window).

Try AbeBooks


This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895 edition. Excerpt: ...describes the first sporadic case of filariasis in Europe and gives the entire history of Filaria aanguiinis liominis. The photomicrographs of the parasite, showing its relative size to the surrounding blood-corpuscles, are excellent. J. H. Whelan, of Zanzibar, ,, suggests that the elastic membrane, within which the young F. sanguinis h0mim'_s is inclosed during its stay in the circulating fluid, is to protect the soft, semigelatinous body of the embryo from the attacks of the phagocytes, and that it may also protect the embryo, on first entry into the mosquito's stomach, from the corrosive action of the digestive juice. Whelan is wrong in supposing that Manson "failed to inquire into the uses of this elastic membrane." VVe quote Manson in respect to this point,, _: " In what way can such a clumsy covering subserve the interests of the parasite'! As I have elsewhere pointed out, the sheath in which the filaria lies and moves about is really the remains of the egg-shell of intra-uterine life. VVhy then is it not discarded before the birth of the embryo and its appearance in the blood-stream as a free-swimming and independent organism'! I believe the reason for this anomaly in development is that the loose, trailing sheath is intended to prevent the filaria from using its formidable boring apparatus on the walls of the blood-vessels of the human host. This, which I may describe as a muzzling arrangement, is not made in the interests of the human host, but with a view to the well-being and future of the parasite itself; for, were the latter permitted to ply its weapons on the blood-vessels and escape thus into the perivascnlar tissues, it would miss its chance of being transferred to the...
show more

Product details

  • Paperback | 246 pages
  • 189 x 246 x 13mm | 445g
  • United States
  • English
  • black & white illustrations
  • 1236771435
  • 9781236771438