Principles of Zoölogy: Pt.I Comparative Physiology

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Gould and Lincoln, 1852
 

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Page 1 - The design of this work is to furnish an epitome of the leading principles of the science of Zoology, as deduced from the present state of knowledge, so illustrated as to be intelligible to the beginning student. No similar treatise now exists in this country, and indeed, some of the topics have not been touched upon in the language, unless in a strictly technical form, and in scattered articles.
Page 46 - This is called the vitreous humor, (h.) 77. The object of this apparatus is to receive the rays of light, which diverge from all points of bodies placed before it, and to bring them again to a point upon the retina. It is a well-known fact, that when a ray of light passes obliquely from one medium to another of different density, it will be refracted or turned out of its course more or less, according to the difference of this density, and the obliquity at which the ray strikes the surface.
Page 249 - We earnestly bespeak for this work a wide and free circulation, among all who love science much and religion more." — Puritan Recorder. THE OLD RED SANDSTONE ; or, New Walks in an Old Field.
Page 248 - This work embraces about one thousand authors, chronologically arranged and classed as Poets, Historians, Dramatists, Philosophers, Metaphysicians, Divines, etc., with choice selections from their writings, connected by a Biographical, Historical, and Critical Narrative ; thus presenting a complet* view of English literature from the earliest to the present time.
Page 200 - It is very important to notice, that here are concentrated the most perfect, as well as the oddest, types of all the classes of the Animal Kingdom. The tropical region is the only one occupied by the Quadrumana, the herbivorous bats, the great pachydermata, such as the elephant, the hippopotamus, and the tapir, and the whole family of Edentata. Here also are found the largest of the cat tribe, the lion and tiger. Among the Birds we may mention the parrots and toucans, as essentially tropical; among...
Page 248 - CYCLOPEDIA OF ENGLISH LITERATURE. A Selection of the choicest productions of English Authors, from the earliest to the present time. Connected by a Critical and Biographical History. Forming two large imperial octavo volumes of TOO pages each, double column letter press ; with upwards of 300 elegant Illustrations.
Page 23 - There are collections of marine shells, bivalve and univalve, which amount to 5 or 6000; and collections of land and fluviatile shells, which count as many as 2000. The total number of mollusks would, therefore, probably exceed 15,000 species.
Page 248 - Divines, etc., with choice selections from their writings, connected by a Biographical, Historical, and Critical Narrative ; thus presenting a complete view of English Literature, from the earliest to the present time. Let the reader open where he will, he cannot fail to find matter for profit and delight. The Selections are gems, — •infinite riches in a little room, — in the language of another "A WHOLE ENGLISH LIBRARY FUSED DOWN INTO ONE CHEAP BOOK...
Page 176 - Vertebrates, the considerations drawn from metamorphoses acquire still greater importance in reference to classification. The Sturgeon and the White-fish, before mentioned, (306,) are two very different fishes ; yet, taking into consideration their external form and bearing merely, it might be questioned which of the two should take the highest rank ; whereas the doubt is very easily resolved by an examination of their anatomical structure . The White-fish has a skeleton, and, moreover, a vertebral...

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