Zoological Bulletin Volume 2

Zoological Bulletin Volume 2

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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. 1899 edition. Excerpt: ...convenient for comparative study, must certainly be of great value in the laboratory. Photomicrography appears to us to fill just such a need. A dozen photographs of a variety of features can be taken in the time required to reproduce any one of them by a careful drawing. The printed photographs can be kept in a form serviceable for frequent reference, and the impression first made by the preparation not allowed to fade. Possibly a photograph is less intelligible than a simplified sketch to any one unfamiliar with the preparation, but cannot this be said of the preparation itself? We have collected over two hundred sketches and as many photographs, illustrating features in our sections we wished to preserve for comparative study. Of the relative values of these two methods there can be no question, in every case the photographs proving to be the more valuable aid in recalling the preparations. We are not pleading to replace the sketch with the photograph, but we would argue for the use of both, letting the photograph speak for the preparation and the sketch for the investigator's interpretation. One of the criticisms of Erlanger's photograph, most commonly heard, emphasizes the worthlessness of his preparations. Is not this the strongest possible argument in favor of photomicrography? Woods Holl, October 10, 1898. PAPERS REFERRED TO. 1. Andrews, Gwendolen Foulke. Some Spinning Activities of Pro toplasm in Starfish and Echinus Eggs. Journ. of Morph. Vol. xii, No. 2. 1897. 2. v. Erlanger, R. Beitrage zur Kenntniss der Structur des Proto plasmas, der karyokinetischen Spindel und des Centrosoms. Arch, f. mikr. Anat. Bd. xlix. 1897. 3. Flemming, W. Zelle. Ergebnisse der Anat. u. Entwicklungsge schichte, Merkel u. Bonnet. Bd. vi. 1897. 4. Foot, ...show more

Product details

  • Paperback | 90 pages
  • 189 x 246 x 5mm | 177g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236876911
  • 9781236876911