Nature Volume 9 (1873-1874)

Nature Volume 9 (1873-1874)

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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. 1874 edition. Excerpt: ...as regards specific or trivial names. 2. To adopt the same principle for genera only so long as the generic character or definition of the genus remains unaltered; but whenever an original investigator defines a genus more completely than has been done before, he is to be left free to name it as he pleases. Every consideration of utility and common sense will of course lead him to retain a name already in use when the new genus does not materially differ from an older one: but of that he is alone the judge, and it should be absolutely forbidden to any third party to say that a name so given must be changed. 3. Whenever genera which are widely recognised are split up into a number of proposed smaller ones, the old generic name should continue in use till further investigation determines whether the new groups are sufficiently well defined and natural to supplant the old one. In conclusion, it may be suggested that if zoologists who have paid attention to this subject would, after a careful consideration of Mr. Sharp's paper, state their own conclusions in the form of short propositions, accompanied by their reasons for them, a notion might be obtained, not only as to which system is intrinsically the best, but, what is of equal or perhaps greater importance, which is most likely to command general assent. Alfred R. Wallace RESULTS OF THE TRENCH SCIENTITIC MISSION TO MEXICO Mission Scicntifique au Mexique et dans VAmetique Ccnlrale. Recherches Zoologiques publiees sous la direction de M. Milne-Edwards. Livraisons 4. (Paris: 1870-72.) THE ill-fated attempt of the Second Empire to estabImperialism in Mexico has had at least one good result in the work now before us, in which the labours of a Scientific Mission originally sent out under the shadow of...show more

Product details

  • Paperback | 654 pages
  • 189 x 246 x 33mm | 1,148g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236559991
  • 9781236559999