A short system of comparative anatomy / translated from the German of J. F. Blumenbach ... by William Lawrence ... with numerous additional notes and an introductory view on the classification of animals, by the translator.

  • Johann Friedrich Blumenbach
Date:
1807
Catalogue details

Licence: Public Domain Mark

Credit: A short system of comparative anatomy / translated from the German of J. F. Blumenbach ... by William Lawrence ... with numerous additional notes and an introductory view on the classification of animals, by the translator. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

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    two tubes: and the meatus urinarius opens at the point of divifion. From each tube a canal com- mences, which runs outwards, and then returns in the fame courfe to open into a middle cavity; from which the cornua uteri arife. The changes which thefe parts undergo in the impregnated (late have not hitherto been afcertained. (E) The paffage of the foetus, in the opofTum tribe and the kanguroo, from the cavity of the uterus into the falfe belly, where it adheres by its mouth to the nipple, prefents one of the moft fm- gular and interefting phenomena in the whole circle of comparative anatomy. Phyfiologifts have not yet afcertained, whether the embryo poffefTes, at any period, a connexion with the uterus fimilar to that which is obferved in the other mammalia: but it appears very probable, that the procelTes, which follow the paffage of the ovum from the ovarium, are entirely different in thefe animals, from thofe which take place in the other mammalia. Neither has the precife period, at which the foetus enters the falfe belly, been hitherto (hewn. The following ftatement of the fub]e£l:, as far as it is at prefent known, is derived from Mr. Home's paper. The uterus and lateral canals, in their pregnant ftate, are diftended with a very adhefive jelly of a bluifli