. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. Fig. 144.—Photograph of colored corpuscles of frog. 1 X 370. (Alter Hint.) visible to the unaided eye, while in the whole class of mam- mals they are very minute ; their numbers also in this group are vastly greater than in others lower in the scale. The average size in man is -j^TT inch ("0077 mm.) and the number in a cubic mil- limetre of the blood about 5,000,000 for the male and 500,000 less for the female, which would furnish about 250,00
. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. Fig. 144.—Photograph of colored corpuscles of frog. 1 X 370. (Alter Hint.) visible to the unaided eye, while in the whole class of mam- mals they are very minute ; their numbers also in this group are vastly greater than in others lower in the scale. The average size in man is -j^TT inch ("0077 mm.) and the number in a cubic mil- limetre of the blood about 5,000,000 for the male and 500,000 less for the female, which would furnish about 250,000,000,000 in a pound of bloodi It will be under- stood that averages only are spoken of, as all kinds of variations occur, some of which will be referred to later, and their significance explained. Under the microscope the blood of vertebrates is seen to owe its color to the cells chiefly, and, so far as the red goes, almost wholly. Corpuscles when seen singly are never of the deep red, however, of the blood as a whole, but rather a yellowish red, the tinge varying some- what with the class of ani- mals from which the spec- imen has been taken. Certain other morpJio- logical elements found in mammalian blood deserve brief mention, though their significance is a mat- ter of much dispute: 1. The blood - plates {plaques, JuBmatoblasts, third element), very small, colorless, biconcave disks, which are deposited in great num- bers on any thread or similar foreign body introduced into the circulation, and rapidly break up when blood is shed. 2. On a slide of blood that has been prepared for some little. Fig. 14B.—Corpuscles from human subject (Funke). A few colorless corpuscles are seen among the colored disks, which are many of them arranged in 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
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Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1880, bookyear1889
