SEWERTZOFF [SEVERTSOV], Aleksey Nokolaevich (1866-1936).: — Morphologische Gesetzmässigkeiten der Evolution.
Jena: Gustav Fischer, 1931. 8vo, 24.6cm. Pp. xiv,[2],371, 131 figures and 24 diagrams in text, footnotes & references, author name index. Hardbound, original printed cloth. Fold to front endpaper and title leaf, very good otherwise. - Scarce. Severtsov developed the biogenetic law of recapitulation theory of Ernst Haeckel under the term that he coined, phyloembryogenesis, and attempted to explain evolution through morphological and developmental changes in the present work. Dct. Sci. Biogr., XII, p. 338. - [phd.322]