English: |1=
Title: Comparative zoology, structural and systematic : for use in schools and colleges
Identifier: comparativezool00orto (find matches)
Year: 1883 (1880s)
Authors: Orton, James, 1830-1877; Birge, E. A. (Edward Asahel), 1851-1950
Subjects: Zoology; Anatomy, Comparative; Physiology, Comparative
Publisher: New York : Harper & Bros.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library
View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.
Text Appearing Before Image:
100 COMPARATIVE ZOOLOGY. ular, or sac-like, in all animals; but they are constantly changing. The form of the red disks is more permanent, although they are soft and elastic, so that they squeeze MAN ⢠I I. 3200 ELEPHANT' ⢠1.274 5 MOUSE ⢠1.4268 MUSK DEER 112325 HUMMING BIRD 1.2666 SNAKE 1 â PIGEON ^^^^ f.2314 OTEUS ^^MHHI
Text Appearing After Image:
Fig. 65.âComparative Size and Shape of the red Corpuscles of various Animals. through very narrow passages. They are oval, circular, or angular, in Fishes; oval in Reptiles, Birds, and the Camel tribe ; and circular in the rest of Mammals. They are double-convex when nucleated, and double-concave when circular and not nucleated. Blood is always heavier than water; but is thinner in cold-blooded than in warm-blooded animals, in herbivores than in carnivores. The blood of Birds, which is the hot- test known, being 10° higher than Man's, is richest in red corpuscles. In Man, they constitute about one half the mass of blood. The white globules are far less numerous than the red; they are relatively more abundant in venous than arterial blood, in the sickly and ill-fed than in the healthy and vigorous, in the lower Vertebrates than in Birds and Mammals. Their number is subject to great
Note About Images
Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.