A Manual of the Infusoria; Including a Description of All Known Flagellate

A Manual of the Infusoria; Including a Description of All Known Flagellate

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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. 1882 edition. Excerpt: ... it first, in March 1874, growing upon Myriophyllum in company with Episfylis grandis and other animalcules, through Mr. Thomas Bolton, from the neighbourhood of Stourbridge, Worcestershire, and has more recently obtained it in the neighbourhood of Ashby-de-la-Zouch. From the notes and sketches made at these times, it is now found possible to fill up certain of the very extensive lacunae left by its original describers. In the first place, the beading of the cuticular surface has been demonstrated by examination with a high magnifying power to be much more even, closely set, and generally distributed than is indicated by either Mr. Tatem or De Fromentel. The symmetrically annular disposition of these beadlike prominences, and their correspondence in that respect with the transverse cuticular striae of various other species, is recognized by the former writer, but he has at the same time represented the separate beads as much more distinctly isolated from one another than is actually the case, while the elevated and in certain aspects dome-like ciliary disc is, in accordance with Mr. Tatem's drawing, entirely smooth and deficient in the ornamentation that distinguishes the remaining portion. The surface of the ciliary disc was found by the author to be similarly decorated, the hemispherical elevations being, indeed, of slightly larger size than on the walls of the body. This cuticular ornamentation, however, attains its most conspicuous development on the surface of the peristome-border, in which region the bead-like markings are quite twice the size of those of the subjacent area. When expanded to its full extent the peristome-border is everted and revolute to an extent apparently unobserved by its previous biographers, the contour of the body...show more

Product details

  • Paperback | 242 pages
  • 189 x 246 x 13mm | 440g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236624130
  • 9781236624130