. A manual of zoology. Zoology. G EN ERA L UISTOL 0 G Y. 87. ^'' -'^-"^'y^ glutin, so iutimiitely coinbinod with inorganic constituents tliat it appears nnder the microseoiJe as a homogeneous mass. The propor- tion of organic and inorganic sub- stances varies according to the age and sp)ecies of animal: in man, for example, there is 05^ inorganic to 35^ organic suljstanee; in the turtle, Gofo to 37^. Of the in- organic constituents, the most im- portant is calcic phosphate, 84^; in smaller quantities, combinations of fluoric, chloric, carbonic acids i^, , ^ ^-,-t ^^^%,^^^^ j,-)- and magne
. A manual of zoology. Zoology. G EN ERA L UISTOL 0 G Y. 87. ^'' -'^-"^'y^ glutin, so iutimiitely coinbinod with inorganic constituents tliat it appears nnder the microseoiJe as a homogeneous mass. The propor- tion of organic and inorganic sub- stances varies according to the age and sp)ecies of animal: in man, for example, there is 05^ inorganic to 35^ organic suljstanee; in the turtle, Gofo to 37^. Of the in- organic constituents, the most im- portant is calcic phosphate, 84^; in smaller quantities, combinations of fluoric, chloric, carbonic acids i^, , ^ ^-,-t ^^^%,^^^^ j,-)- and magnesia. Morphologically f J^^^/%:'''K'''^r''^:^'l V^ the matrix is composed of the bone ^ •' '^ — ' ^'^ -^ ''i. The former are arranged jjarallel to the sur- face of the iieriosteum ami of the marrow-cavity and form a mantle of concentric layers around the marrow-cavity. Inti^i this groundwork the Haversian canals with their lamel]a3 enter, destroying and suiierseding the fundamental lamella; coming in their way. 'i'he Haversian lan^ellaj are concentrically arranged around the lumen of the Haversian canals just as tlie fundainental lamello3 are around 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 Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1902
