Figures and Descriptions of Canadian Organic Remains Volume 2

Figures and Descriptions of Canadian Organic Remains 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. 1865 edition. Excerpt: ...the partially-developed cellules. The full width of the stipes in young individuals is often not more than one twelfth of an inch, and in mature specimens about one seventh of an inch; the base having a diameter of not more than two or three hundredths of an inch. The common body occupies avery narrow space, and the solid axis is strongly defined in the flattened specimens. The substance of the stipe or pellicle is quite thin and apparently smooth, the only markings visible being the oblique striae made by the cell-partitions. Cellules elongate, of medium width, somewhat curved, and in the fullydeveloped condition about four times as long as wide, making an angle of from 40 to 50 with the axis; free for about one fourth of their length; about from twenty to twenty-four in the space of an inch, varying in difi'erent individuals and-in different stages of growth. Aperture curved, making an angle of about 110 with the axis; the cell'denticles pointed, " I have little doubt that this species is identical with Fucoides serra ofBrongniart (Veg. Fossiles, p._70, 1828). The locality of that species is " Pointe Levi pres Quebec," which is the same with that of G. bryonoides: and the figures of Brongniart correspond with figs. 9 and 10 of plate 4 of thismemoir. The Fucoides dentalus of the same author is also probably identical with G. pristimformis of this memoir, being from the same locality. It is only since these descriptions have been in print, and published references made to them, that I have discovered this identity, or I would have proposed to substitute the specific names of Brongniart. for those given by me in 1857. I take the first opportunity of making the correction. and slightly curved forward: ...
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Product details

  • Paperback | 64 pages
  • 189 x 246 x 3mm | 132g
  • English
  • Illustrations, black and white
  • 1236872657
  • 9781236872654