Minute Marvels of Nature

Minute Marvels of Nature

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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. 1904 edition. Excerpt: ...beautiful ivory coralline substance. The example in Fig. 73 reverts again to the mem Fig. 73. Animal-plant cells arranged after the manner of a leaf, instead of branches branous structure, but with an entirely different cellular arrangement. Instead of forming branches, a leaf or frond-like arrangement is assumed. The cells are packed and crowded together on each side of the leafy organisms, which are familiar to seaside visitors as "sea-mats." Specimens of the natural size were the broader fronds in Fig. 70, the branch-like and finer kinds being similar to that H shown slightly magnified in Fig. 71. Wonderful habitations are these, and built entirely by their tiny inhabitants. Remains of similar organisms are found in some of the oldest rock formations, giving abundant proof that the type flourished in the remote past. Fossil species are unearthed from every corner of our country, the rocks remaining as the record of their existence; and in Fig. 74 you may see a small group of them from Norfolk, moderately magnified. These zoophytes, or "animal-plants," abounded in the primitive seas, fulfilling the same functions as the many living zoophytes of to-day: separating the carbonate of lime from the waters, to build habitations for themselves; and at the same time, by their myriads of accumulating skeletons during countless ages, unconsciously raising materials which afterwards would be quarried as solid rock for the dwelling-places of man himself. As is well known, our limestones were built up chiefly by various tiny living organisms which possessed this power of separating the lime from the waters. Fig. 75 illustrates the structure of a minute portion of a very thin slice of limestone, showing how it is built up of what...show more

Product details

  • Paperback | 34 pages
  • 189 x 246 x 2mm | 82g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 123676708X
  • 9781236767080