Elementary text-book of zoology, general Elementary text-book of zoology, general part and special part: protozoa to insecta elementarytextbo00clau Year: 1892 42 QSXEKAL PART. found teeth in osseous fishes, and quite universally as the dentine of (fig. 32). With regard to its development, bone is preceded by soft connective tissue or by cartilage. In the first case, it develops by the tran;4'or- ^. , mation of the connective tissue ^^^^W^K ^ ^^^^^ '^^° bone corpuscle-, and by â ^^' ^ the hardening of the intermediate tissue. More frequently it is pre- ceded by cartilage ; and this holds f
Elementary text-book of zoology, general Elementary text-book of zoology, general part and special part: protozoa to insecta elementarytextbo00clau Year: 1892 42 QSXEKAL PART. found teeth in osseous fishes, and quite universally as the dentine of (fig. 32). With regard to its development, bone is preceded by soft connective tissue or by cartilage. In the first case, it develops by the tran;4'or- ^. , mation of the connective tissue ^^^^W^K ^ ^^^^^ '^^° bone corpuscle-, and by â ^^' ^ the hardening of the intermediate tissue. More frequently it is pre- ceded by cartilage ; and this holds foi' a great part of the vertebrate skele- ton. Formerly great importance was attached to this difference in the oiigin
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