On Comparative Longevity in Man and the Lower AnimalsMacmillan and Company, 1870 - 135 pages |
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Page 6
... depends then , in general , on the following circumstances . Ist . It depends on the quantity of vital force contained in the body . . . . 2nd . Life consumes and destroys not only vital force , but also the organs ; the de- struction ...
... depends then , in general , on the following circumstances . Ist . It depends on the quantity of vital force contained in the body . . . . 2nd . Life consumes and destroys not only vital force , but also the organs ; the de- struction ...
Page 7
... depends . 3rd . The consumption ( of vital force and of organs ) may be more or less rapid , consequently its duration , or , what amounts to the same thing , that of life , may be , other things being equal as regards forces and organs ...
... depends . 3rd . The consumption ( of vital force and of organs ) may be more or less rapid , consequently its duration , or , what amounts to the same thing , that of life , may be , other things being equal as regards forces and organs ...
Page 31
... depend on their union with other partially developed cells or gemmules which precede them in the regular course of growth . ' ' Gemmules are supposed to be thrown off by every cell or unit , not only during the adult state , but during ...
... depend on their union with other partially developed cells or gemmules which precede them in the regular course of growth . ' ' Gemmules are supposed to be thrown off by every cell or unit , not only during the adult state , but during ...
Page 38
... depends on that period ) to influence the natural termination of life . The con- dition of equilibrium between expenditure and nu- trition , growth having ceased , might be maintained for an indefinite time , were it not that precisely ...
... depends on that period ) to influence the natural termination of life . The con- dition of equilibrium between expenditure and nu- trition , growth having ceased , might be maintained for an indefinite time , were it not that precisely ...
Page 44
... depends on the amount of living matter accumu- lated during growth , and that this depends on the size at birth , cæteris paribus . Thus it is that we may trace the rationale of that connection between time of growth , 44 EX VIRIBUS ...
... depends on the amount of living matter accumu- lated during growth , and that this depends on the size at birth , cæteris paribus . Thus it is that we may trace the rationale of that connection between time of growth , 44 EX VIRIBUS ...
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Common terms and phrases
abnormal absolute potential longevity accessibility of food Actinozoa amongst Annelids appears Aristotle asexual average longevity Bacon birds Buffon bulk cæteris paribus causes character civilized classes Comparative Longevity creature Crown 8vo Crustacea Darwin death diminished disease duration English enquiry essay Extra fcap F. T. PALGRAVE facts Farr favours Longevity Fcap fertility fish Flourens forms Fuegian gemmules Genesis germinal matter gevity greater Grindon growth hence Herbert Spencer hereditary high evolution high individuation Hufeland Hydrozoa increased influence insects known length less life-tables limit living matter long livers long-lived longer lived males ments Mollusca mortality natural decay Neison nutriment observed old age organisms ovum period personal expenditure plants POEMS potential longevity Probable after-lifetime PROTOPHYTA Protozoa quantity races regard relation reproduction Reptiles Rotifer Rotifera seen shew Spencer statements statistics structure supposed term terrestrial Terrestrial animals tertiary aggregation tion various Vertebrata whilst writer young
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