Zoology for High Schools and CollegesH. Holt, 1886 - 722 páginas |
Términos y frases comunes
abdomen adult allied animals antennæ apes appendages arms Ascidians birds body body-cavity bones Brachiopods brain breeding broad burrows called canal carapace Carnivora cavity cells ciliated claws coast color common coral Crustacea developed digestive dorsal eggs embryo enlarged eyes feet female fins fish flabellum foot fore four ganglia Garpikes gastrula gills glands gorilla habits hatched head heart hind hollow horny inches incisors inhabits insects intestine jaws labrum larger larva larvæ legs length limbs liver lives lobes Lütken's Zoology male mammals maxillæ metamorphosis metres mollusks monkeys mouth muscles nearly nerves nest oesophagus Order organs pairs palpus pectoral fins pharynx polyps pupa reefs represented segments shell side skin skull slender snakes species spiracles sponge star-fish stomach swimming tadpoles tail teeth tentacles thick thorax toad toes trees Ungulates upper usually ventral vertebrates whales wings winter worms young Zoology
Pasajes populares
Página 338 - Physiological Division of Labor." To the same end he also gives simple, practical directions to assist the teacher in demonstrating to the class the fundamental facts of the science. The book includes a chapter on the action upon the body of stimulants and narcotics.
Página 337 - The principal objects of the series are to supply the lack — in some subjects very great — of authoritative books whose principles are, so far as practicable, illustrated by familiar American facts, and also to supply the other lack that the advance of Science perennially creates, of text-books which at least do not contradict the latest generalizations. The scheme...
Página 310 - It must not be overlooked, however, that there is a very striking difference in absolute mass and weight between the lowest human brain and that of the highest ape — a difference which is all the more remarkable when we recollect that a fullgrown Gorilla is probably pretty nearly twice as heavy as a Bosjesman, or as many an European woman. It may be doubted...
Página 338 - The number of poor books meant to serve the purpose of text-books of physiology for schools is so great that it is well to define clearly the needs of such a work : i. That it shall contain accurate statements of fact. 2. That its facts shall not be too numerous, but chosen so that the important truths are recognized in their true relation. 3. That the language shall be so lucid as to give no excuse for misunderstanding.
Página 338 - Elementary Course. I2mo. 261 pp. A very earnest attempt to present the subject so that children may easily understand it, and, whenever possible, to start with familiar facts and gradually to lead up to less obvious ones. The action on the body of stimulants and narcotics is fully treated. From WS PERRY...
Página 243 - The Female doubtless breeds her young at her Teats; for I have seen them stick fast thereto when they have been no bigger than a small Rasberry, and seemingly inanimate. She has a Paunch, or false Belly, wherein she carries her Young, after they are from those Teats, till they can shift for themselves. Their Food is Roots, poultry or wild Fruits. They have no Hair on...
Página 278 - The skin, which is of nearly an inch in thickness, is destitute of covering, excepting a few scattered hairs on the .muzzle, edges of the ears, and tail. The color of the animal, when on land, is of a purple brown ; but when seen at the bottom of a pool it appears altogether different, viz., of a dark blue, or, as Dr.