Animal and vegetable physiology, considered with reference to natural theology, by Peter Mark Roget .. . hoofs and nails, and also in the scales of fishes ;*and occasionally in filaments, as in hair; whichlatter, again, are often agglutinated together bya strong cement, uniting them into a hardand solid structure, of which the horn of therhinoceros is a remarkable example. In allcases, the portions thus successively produced. * The laminated structure of the scales of fishes is easily dis-tinguished by applying to them a high magnifying power. Asthe breadth of each new layer is greater than th
Animal and vegetable physiology, considered with reference to natural theology, by Peter Mark Roget .. . hoofs and nails, and also in the scales of fishes ;*and occasionally in filaments, as in hair; whichlatter, again, are often agglutinated together bya strong cement, uniting them into a hardand solid structure, of which the horn of therhinoceros is a remarkable example. In allcases, the portions thus successively produced. * The laminated structure of the scales of fishes is easily dis-tinguished by applying to them a high magnifying power. Asthe breadth of each new layer is greater than the last, its edgesproject further, the whole surface having that concentric striatedappearance which renders it an interesting object for microscopicexamination. Fig. 29 exhibits the striated surface of the scale ofthe -Cyprinus alburnus, and Fig. 30 that of the Perca imbricated arrangement of these scales, resembling that ofthe tiles on the roof of a house, is shown in Fig. 31. All thesefigures represent tlie olijpcts highly ma2;iiifierl. AN IMAL ORGAN IZATIO N, 117 are no longer sus
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Keywords: ., bookcentury18, booksubjectnaturaltheology, booksubjectphysiology
