On Comparative Longevity in Man and the Lower AnimalsMacmillan and Company, 1870 - 135 pages |
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Page 15
... definite meaning , we become involved in numerous difficulties when making a comparison of the length of life in different species of organic beings . However im- portant in a zoological sense the definition of ' in- dividual ' may be ...
... definite meaning , we become involved in numerous difficulties when making a comparison of the length of life in different species of organic beings . However im- portant in a zoological sense the definition of ' in- dividual ' may be ...
Page 20
... definite notion of this ' specific longevity , ' great difficulties have to be encountered . By ' specific longevity ' we may mean the average longevity of the individuals of a species , that is , the average duration of life of all the ...
... definite notion of this ' specific longevity , ' great difficulties have to be encountered . By ' specific longevity ' we may mean the average longevity of the individuals of a species , that is , the average duration of life of all the ...
Page 22
... definite indica- tion of potential longevity for comparison . Statis- ticians frame tables for various groups and classes of men , in which the probable1 after - lifetime or expec- tation of life is calculated for any given age . The ...
... definite indica- tion of potential longevity for comparison . Statis- ticians frame tables for various groups and classes of men , in which the probable1 after - lifetime or expec- tation of life is calculated for any given age . The ...
Page 46
... definite objects , it may be pro- longed over a considerable time , recurring at intervals . This period does not seem to depend directly on the period of growth at all , but it is distributed to organism with regard to other and ...
... definite objects , it may be pro- longed over a considerable time , recurring at intervals . This period does not seem to depend directly on the period of growth at all , but it is distributed to organism with regard to other and ...
Page 72
... definite limit of life , yet certainly do not , on the whole , exhibit anything like so great a potential longevity as the Vertebrata . Again , amongst the Vertebrata , the longest lived are found in the Mam- malia ; and the whale and ...
... definite limit of life , yet certainly do not , on the whole , exhibit anything like so great a potential longevity as the Vertebrata . Again , amongst the Vertebrata , the longest lived are found in the Mam- malia ; and the whale and ...
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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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