Memoirs and Proceedings - Manchester Literary and Philosophical Society Volume 28

Memoirs and Proceedings - Manchester Literary and Philosophical Society Volume 28

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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. 1884 edition. Excerpt: ...fourth a longer set on each side, and the fifth a very small comb on each side with only three small teeth. The lower lip had four sets, all of them divided at or near the middle. 59 (2). A drawing was made of the outlet from the gillchambers, as seen from above. 59 (3). On laying bare the right gill the toes of the right fore limb were found pointing forwards; the limb was traced backwards, and a drawing made of as much of it as could be exposed. Its development was about equal to that of the hind limb of the same tadpole. 60. The skin of the right side of a tadpole was cut away, exposing the right gill with the right fore leg resting upon it, the liver, and a loop of the intestine. An enlarged drawing of the whole animal was made showing these parts. 6o (2). A drawing was made of the right fore leg under the microscope with the two-inch object-glass. 60 (3). A corresponding drawing was made of the right hind limb, showing the comparative size and the agreement in development of the two. The food of the tadpoles has been exclusively vegetable; they are seen constantly grazing on the confervm round the sides of the pond. PLATE XV. 61. A drawing of the ventral surface of a tadpole was made, of the natural size. 61 (2). It was next turned on its right sideand a slightly enlarged drawing of the left side was made, showing the opening into the gill-chambers. 61 (3). The skin was then cut away from the abdomen, and a drawing was made, natural size, showing a front view of the helix-like coil of intestine undisturbed. This view represents only a small part of the intestine, the coils of which are several layers deep. The tadpoles in the pond, which were unusually large, were a wonderful sight; they were in dense crowds feeding on the confervee....
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Product details

  • Paperback | 52 pages
  • 189 x 246 x 3mm | 109g
  • United States
  • English
  • black & white illustrations
  • 1236834224
  • 9781236834225