Proceedings of the American Association for the Advancement of Science Volume 4

Proceedings of the American Association for the Advancement of Science Volume 4

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1851 edition. Excerpt: ... except as their shells commend them to notice. The tendency, therefore, of amateur collections, in this, as in other branches of Natural History, is favorable. Many who begin as amateurs become scientific. If they do not, we yet find them availing themselves more or less of the results of Malacology for the arrangement of their shells, and in various ways encouraging the progress of investigations in which inclination or circumstances do not permit them to engage. We protest, therefore, against the application to such collectors of any terms of disparagement, but would honor those whose hours of recreation, after the fatigues of business, are occupied with the enjoyment and study of the beauties of nature. With the Conchologists properly so called, there is no ground for any imputation. Either by personal examination of the soft parts, or by availing themselves of observations made by others, every possible use is made of the anatomy of the animals, while their habits and geological distribution are probably as well known as those of any invertebrated animals, unless, perhaps, insects should be excepted. If a Conchologist should in these days classify shell as univalves, bivalves, and multivalves, and separate the Testacea from the naked Mollusca, he would indicate a contempt for the animals. If he should suppose that the position in which shells were once placed for description, upside down, and sideways, is that in which locomotion is effected, it might be said that he had much to learn. So far, however, is conchology from disregarding the soft parts, that there is in some quarters even a tendency to undervalue the shell. The study of shells is important on account of the facilities which they furnish for learning the extent of the department...show more

Product details

  • Paperback | 162 pages
  • 189 x 246 x 9mm | 299g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236545982
  • 9781236545985