76 THE MAIN CURRENTS OF ZOOLOGY 



the development of the nervous system, the origin of 

 nerve fibers and the embryology of the human body 

 are important; and the late Charles Sedgwick Minot 

 (1852-1914) (Fig. 22). The last named biologist, of 

 dignified yet gracious personality, is remembered for 

 the wide and stimulating influence which he exerted 

 upon the development of biological research in the 

 United States. He was a prolific writer, his best 

 known books being Human Embryology and A Text 

 Book of Embryology, which take high rank. He 

 established at the Harvard Medical School a com- 

 prehensive collection of prepared sections of the 

 embryos of all classes of vertebrate animals. Under 

 the name of the Harvard Collection these are gen- 

 erously placed at the service of investigators and 

 have been the source of sketches for a large number 

 of embryological papers. 



The notable collection of human embryos accumu- 

 lated on the Carnegie foundation by Professor 

 Franklin P. Mall (1862-1917), of John Hopkins 

 University is also available for reference and for the 

 use of investigators. 



