Some of Nature's Giant Forces

Some of Nature's Giant Forces

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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. 1922 edition. Excerpt: the reel. The roller is a penholder with a slot cut along the axis at one end. Make the blind of paper gummed to roller. Two nails keep the blind down. When the blind is up, the elastic stretches from the nail in the side post to the slit cut in roller. The elastic is drawn through the slit and knotted above. As blind is pulled down, the elastic is wound on the roller. 15. Bow Saw. Box with hole cut in one side as shown; two side-pieces with slots at top to carry crinoline steel bow. A knitting needle carries the reel with the treadle attached as shown. The saw (fret-saw blade) is wired to the bow and to string attached to the reel, and passing under it to far side. (Why is a reel used, and the wire not attached straight to the treadle?) 16. Jollyboy. Clothes peg made into a loosely-jointed doll. A skewer in the dol1's back holds it with feet touching a springboard, e.g. the spring diving board, No. 5 above. Tap the board to make the doll dance. CHAPTER V Tenacity Spiders' Webs. At the fall of the year, if we look round our gardens, we see on the taller plants large spiders' webs. They are more noticeable in September and October, because of the dew which settles on them in the cooler nights. At this time of the year, too, we are often visited by high winds, corresponding to the March winds near the beginning of the year, and we wonder that such fragile things as spiders' webs can survive Nature's rough treatment. But they are wonderfully strong--even in the case of our English spiders. If we go to hot countries we are still more astonished. Some of the monstrous webs made by spiders in the tropics are about a yard across and are made of strands as coarse as thread. So strong are these webs that they can more

Product details

  • Paperback | 28 pages
  • 189 x 246 x 2mm | 68g
  • United States
  • English
  • black & white illustrations
  • 1236993772
  • 9781236993779