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K. E. VON BAER. 



1792-1876. 



WE have already mentioned how intimately the story of 

 development and embryology is interwoven with that of 

 advances in the healing art. Fabricius, Malpighi, Harvey, 

 De Graaf, Haller, and many others were liberal contributors. 

 Professor Oscar Hertwig, Director of the Biological Institute in 

 Berlin, in the first part of his Handbuch d. Vergl. u. exp. Entwkkel- 

 ungslehre d. Wirbelthiere (1901), tells the story of this subject and 

 gives a prominent place to Von Baer. Von Baer was born in 

 Esthonia, he studied at the newly founded University of Dorpat (1810) 

 — even the name Dorpat has disappeared, to-day it is Jurjev — and 

 became Prosector in Konigsberg under E. BURDACH (1801-1876). 

 In 1834 he accepted a " call " to St. Petersburg, where he 

 laboured for thirty years " at once the joy and the pride— the soul of 

 the Academy." In his later years he devoted himself largely to 

 anthropology. We have spoken of De Graaf's work. It was not, 

 however, until 1827, that it was shown by Von Baer that the Graafian 

 follicle was not the real objective in the ovary, but that a much 

 smaller body, the ovum, was the essential unit. 



E. H. WEBER. 



1795-1878. 



THE lineal pedigree of physiology in Leipzig is from Ernst 

 Heinrich Weber through Carl Ludwig to Ewald Hering. Nor 

 must we forget the School of Psychology, which must ever be 

 associated with the names of GUSTAV THEODOR FECHNERand 

 WILHELM WUNDT and LOTZE (of Halle). WEBER was born in 

 Wittenberg, and graduated there. He went to Leipzig in 1817, 

 where he became Professor of Anatomy and Physiology in 1821. 

 These then joint offices he held until 1866, when a new Chair of 

 Physiology was created for C. Ludwig. Weber retained the Chair of 

 Anatomy until 1871, when he was succeeded by W. His, and, 

 conjointly with His, by his son-in-law W. Braune. The work of 

 E. H. Weber marks an epoch not only in physiology, but also in 

 psychology. Apart from his contributions to anatomy, — his contri- 

 butions to the physiology of movement, and above all arrest of 

 movement, represented by the term "inhibition," stand out as a 

 landmark in the progress of human thought. 



