106 CARNEGIE INSTITUTION OF WASHINGTON. 



in the prosecution of various researches. Professor M. H. Spaulding, 

 of the Montana State College, has studied the development of the ex- 

 ternal genitalia in human embryos. Professor George B. Jenkins, of 

 the State University of Iowa, has made determinations in the growth 

 of the subdivisions of the human brain. Professor Carl L. Davis, of 

 the University of Maryland, has studied the anatomy of a human 

 embryo of 24 somites. Professor C. Ogawa, of the Kyoto Imperial 

 University Medical College, Japan, has made an experimental study of 

 the otocyst in amphibian larvse. Professor A. W. Meyer, of the Leland 

 Stanford Junior University, has continued his work on the pathology of 

 human embryos. Professor Albert Kuntz, of the St. Louis University 

 School of Medicine, has studied the sympathetic nervous system in 

 human embryos. Dr. M. B. Wesson and Dr. F. P. Johnson, of the 

 Brady CUnic, have studied the development of the genito-urinary or- 

 gans in human embryos. Drs. L. D. Felton, L. T. Webster, and W. F. 

 Reinhoff, from the staff of the Johns Hopkins Hospital, have worked in 

 tissue cultures in conjunction with Professor and Mrs. Lewis. Similar 

 work has also been followed by Professor S. Saguchi, of the Kanazawa 

 Medical School, Japan, and by Dr. Ruth Lynch, Mr. D. T. Smith, 

 and Miss R. E. Prigosen. Some of these studies have already been 

 mentioned in the main body of the report; the others will be described 

 when they are completed. 



