. Elements of histology. Histology. Blood. 21 horse, j:^ 1 \ . 6 () O ' 10 4 3 ; "ewt, 1 1 1 -t 2 • 11 musk deer, y^i^ 5 ; pigeon, ^g^y ; toad, proteus, yl^; pike, ^-qVo ; ^li^^i'k, 1^ S 1 i. In a microscopic specimen of fresh unaltered blood (Fig. 14) the red blood corpuscles form peculiar short or long rolls, like so many coins, from be- coming adherent to one another by their broad surfaces. Under various conditions — such as Avhen isolated, or when blood is diluted with a 7*5-l saUne solution or solutions of other salts (sulphate of sodium or magnesium) — the cor- puscles lose th
. Elements of histology. Histology. Blood. 21 horse, j:^ 1 \ . 6 () O ' 10 4 3 ; "ewt, 1 1 1 -t 2 • 11 musk deer, y^i^ 5 ; pigeon, ^g^y ; toad, proteus, yl^; pike, ^-qVo ; ^li^^i'k, 1^ S 1 i. In a microscopic specimen of fresh unaltered blood (Fig. 14) the red blood corpuscles form peculiar short or long rolls, like so many coins, from be- coming adherent to one another by their broad surfaces. Under various conditions — such as Avhen isolated, or when blood is diluted with a 7*5-l saUne solution or solutions of other salts (sulphate of sodium or magnesium) — the cor- puscles lose their smooth ^• circular outline, shrink- ing and becoming crenate (Fig. 15, a). In a further lose their discoid form, and become spherical, but beset all over their sur- face with minute processes. This shape is called the liorse-chestnut shaj^e (Fig. 15, b, c). It is probably due to the cor- puscles losing carbonic acid, as the addition of the acid brings back their discoid shape and smooth circular out- line. On abstracting the carbonic acid they return to the horse-chestnut shaj)e. , Water, acid, alcohol, ether, the electric current, and many other reagents, produce decoloration of the red blood Fig. 14.—Human Blood, fresh. Piouleaux of red corpuscles; b, iso- lated red fdrpuscle seen in pr<5flle ; c, isolated red corpuscle seen flat; D, •ttliite corpuscles. stage of shrinking smaller they and a o o Fi h ^' 15.—Human Red Blood Corpuscles. Crenate; b, c, horse-cbestnut- sliaped. corpuscles. the coloured matter—generally the combination of the blood-colouring matter with globulin, known as hcenioylohin—becoming dissolved in the 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 Klein, E. (Edward), 1844-1925; Edkins, John Sydney, b. 1865. Philadelphia : Lea Brothers
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphiladelphialeabro
