Investigations Into Generation, 1651-1828 |
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Page 134
... fertilising them . The juices of lemons and limes , and the oil from their skins , was equally powerless to bring about fertilisation ( 71 , Vol . III , Sections CLXVIII - CLXII , pp . 213-18 ) . Only the juices from the testicles ...
... fertilising them . The juices of lemons and limes , and the oil from their skins , was equally powerless to bring about fertilisation ( 71 , Vol . III , Sections CLXVIII - CLXII , pp . 213-18 ) . Only the juices from the testicles ...
Page 142
... fertilised by a single spermatozoon although , of course , it did not prove the hypothesis . Having studied fertilisation in frogs , Prévost and Dumas turned their attention to the more difficult subject of fertilisation in mammals ...
... fertilised by a single spermatozoon although , of course , it did not prove the hypothesis . Having studied fertilisation in frogs , Prévost and Dumas turned their attention to the more difficult subject of fertilisation in mammals ...
Page 157
... fertilisation occurred nor how it was effected . What he had to say about fertilisation is interesting , for it highlights the difference between his approach and the attitude of either the eighteenth or the twentieth century biologist ...
... fertilisation occurred nor how it was effected . What he had to say about fertilisation is interesting , for it highlights the difference between his approach and the attitude of either the eighteenth or the twentieth century biologist ...
Contents
Introduction | 7 |
Harvey and the Breakaway from the Theories | 16 |
The Initial Stages of the Preformation Theory | 37 |
Copyright | |
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Investigations Into Generation, 1651-1828 (Classic Reprint) Elizabeth B. Gasking No preview available - 2018 |
Common terms and phrases
accepted amongst animalcules animalculist animals appeared Aristotle assumed assumption Baer believed Bentley Glass biology body Bonnet Buffon cell theory Chap Charles Bonnet chick cicatricula claimed completely conception Descartes described discoveries discussed eggs eighteenth century elements embryo embryology enquiries evidence experiments explanation facts female fertilisation foetus formation Generatione germ Graafian follicles gradual growth Haller Harvey Harvey's hybrids idea inheritance interest investigations Leeuwenhoek living things male matter Maupertuis microscopic naturalists nature Needham observations offspring organisation organs origin outlook ovaries oviparous ovist version ovum parent phenomena philosophers plant sexuality plants polydactyly preformation theory preformationists Prévost and Dumas primordium produced published Réaumur recognised regeneration reproduction result scientific scientists seed seemed seen semen seminal seventeenth and eighteenth seventeenth century sexual sexual reproduction similar Spallanzani species spermatozoa structure suggested Swammerdam theoretical uterus Vénus Physique version of preformation vesicles vital particles viviparous Wolff yolk