In Turning From The Embryology To The Phylogeny Of Man--From The
Development Of The Individual To That Of The Species--We Must Bear In
Mind The Direct Causal Connection That Exists Between These Two Main
Branches Of The Science Of Human Evolution. This Important Causal
Nexus Finds Its Simplest Expression In "The Fundamental Law Of Organic
Development," The Content And Purport Of Which We Have Fully
Considered In The First Chapter. According To This Biogenetic Law,
Ontogeny Is A Brief And Condensed Recapitulation Of Phylogeny. If This
Compendious Reproduction Were Complete In All Cases, It Would Be Very
Easy To Construct The Whole Story Of Evolution On An Embryonic Basis.
Development Of The Individual To That Of The Species--We Must Bear In
Mind The Direct Causal Connection That Exists Between These Two Main
Branches Of The Science Of Human Evolution. This Important Causal
Nexus Finds Its Simplest Expression In "The Fundamental Law Of Organic
Development," The Content And Purport Of Which We Have Fully
Considered In The First Chapter. According To This Biogenetic Law,
Ontogeny Is A Brief And Condensed Recapitulation Of Phylogeny. If This
Compendious Reproduction Were Complete In All Cases, It Would Be Very
Easy To Construct The Whole Story Of Evolution On An Embryonic Basis.
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