On Comparative Longevity in Man and the Lower Animals

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 creature Crown 8vo Crustacea Darwin death diminished disease duration English enquiry essay Extra fcap facts favours Longevity Fcap Fcap 8vo fertility fish Flourens forms Fuegian gemmules genesis germinal matter gevity greater Grindon growth hence HENRY KINGSLEY Herbert Spencer hereditary high evolution high individuation History Hufeland Hydrozoa increased influence insects known length less life-tables limit living matter long livers long-lived longer lived males mammals ments Mollusca mortality natural decay nutriment observed old age organisms ovum period personal expenditure plants POEMS POETRY potential longevity Professor PROTOPHYTA PROTOZOA quantity races racterizes regard relation reproduction Reptiles Rotifer seen sexual shew Spencer statements statistics structure supposed term terrestrial Terrestrial animals tertiary aggregation tion various Vertebrata whilst writer young