DEPARTMENT OF GENETICS. Ill 



in these piebald races. The lines of self, tan Dutch, white Dutch, dark 

 Dutch, and others are being continued, although high mortality has threat- 

 ened some of them. Professor Fish reports that he now has two different 

 stocks, each carrying 5 or more recessive factors, and, between them, all 

 of the recessive factors that have been carefully worked out in rabbits are 

 represented. An attempt has been made to repeat Professor Guyer's experi- 

 ments on the effect of specific sera upon the germ-plasm, but no positive 

 results have been so far gained. 



STUDIES ON HUMAN GENETICS. 

 Heredity in Aristogenic Families. 



Dr. H. J. Banker has continued his compilation of the genealogy of a New 

 England family from the eugenical standpoint, following the plan of his 

 paper entitled "The ideal family history," presented before the International 

 Congress of Eugenics. The selected family is one which has shown con- 

 siderable incidence of eminent scholarship. The plan involves the study of 

 the propositus, his consort, and their ancestry for three generations; also 

 each of their posterity, with the ancestry of each consort. The total number 

 of descendants issued from the propositus is now 235, of whom 63 have had 

 issue. The completed manuscript would include several thousand type- 

 written pages. 



Dr. Banker has continued his collection of scholarship records of coedu- 

 cational schools, with the aim of studying inheritance of special scholarship. 

 Fortunately he has found, in the adjacent village of Huntington, high school 

 records dating from 1859. They are well preserved and complete from the 

 time of its foundation, and contain a number of instances of not only children 

 but also grandchildren of the earliest students. On account of the stable 

 character of its population and the prevalence of local intermarriage, there 

 appears to be an unusual number of instances of children and both parents 

 educated in the school. Dr. Banker believes the material to be the most 

 valuable in quantity, if not in quality, of any that has yet been obtained. 



Heredity in Cacogenic Families. 



Dr. A. H. Estabrook has completed his report on the Tribe of Ishmael 

 and submitted it for publication. All original data on the tribe have been 

 filed in the archives of the Eugenics Record Office. Also, there was deposited 

 in the archives a duplicate copy of all data gathered by the Indiana Com- 

 mittee on Mental Defectives during the years 1916 to 1923. This includes 

 some family histories and surveys of mental ability. 



Since the middle of November 1922, Dr. Estabrook's time has been chiefly 

 spent in the field on the problem of the South Appalachian population. In 

 seeking to find the best place in which to start, he had conferences at social 

 agencies in New York City, made a tour of the Appalachians through the 

 Virginias, Carolinas, and eastern Kentucky and Tennessee. On this trip 

 men and women who had information about the population of the mountains 

 were visited and consulted as to the proper locations for the first field work. 

 Particularly valuable contacts were made at Berea College, Lincoln Memorial 

 University, University of Tennessee, Asheville Normal School, University 

 of North Carolina, State Board of Public Welfare, Raleigh, North Carolina, 

 and University of South Carolina. Opportunity was gained to learn of 



