Nature Study in Schools Volume 1

Nature Study in Schools Volume 1

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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: ...bridge pier is chosen, or a hole beneath the eaves of a building, but I think that the rough-wing rarely excavates a hole for itself. The following is a synopsis of our swallows arranged according to form of the tail, color, flight and size so that they may be recognized when on the wing. Tail, most deeply forked. Flight, most graceful. Beneath, reddish. Size, medium. BARN SwALLOV. 116 EXPERIMENTAL Lr-: sso.s. Tail, a little less deeply forked. Flight, graceful. Beneath, white. Size, medium. BAHAMA Sw.u.Low. Tail, moderately forked. Flight, heavy. Beneath, dark colored. Size, large. PURPLE li/irvrm. Tail, quite slightly forked. Flight, rather easy. White beneath. Size, medium. WrrITr: -Br: LLr!-: o Sw.r.Low. Tail, very slightly forked. Flight, quite light and easy. Beneath, white, with dark band across breast. Size, small. BANK SwALLOw, Tail, very slightly forked. Flight, rather heavy and slow. Beneath, white, with throat and neck brown. Size, rather small. ROUGH-VI.GED Sw.u.r.ow. Tail, square, not forked. Flight, heavy and slow. Beneath, reddish, with dark spot on throat. Rump, chestnut. Size, medium. F..vr: SVALLOV. LESSON ON SPONGES IN A NINTH GRADE, WILLIAMS SCHOOL, AUBURNDALE, MASS. The fibers in the sponge are woven closely together. They all grow into one another, and are one continuous line all the way through the sponge. The fibers are hollow in the interior, and if we were small enough to get inside of these fibers we could travel all through the sponge. The flesh of a sponge grows first so that it can produce the fibers and every thing that is necessary for the sponge is produced by this flesh. The fibers are composed of horn, and sponge flesh is constantly adding horny matter to these fibers, so that old sponges become thickeshow more

Product details

  • Paperback | 78 pages
  • 189 x 246 x 4mm | 154g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236851609
  • 9781236851604