"The Study of Human Heredity," by Davenport, Laughlin, Weeks, Johnstone, and Goddard, Eugenics Record Office Bulletin No. 2 (2)

1773. 2 Eugenics Record Office, Bulletin. from the patient all that he or she can tell about the friends and relatives, especially with reference to their addresses, etc. The patients enjoy these visits, and are often able to give very useful information. Everything now being ready for the visit to the home, the field worker, armed with recent personal knowledge of the patient, which assures her cordial welcome, visits the home and interviews the relatives, friends, and family physician. To secure satisfactory results, sympathetic and confidential relations must always be maintained. It is better to leave some details to another visit that to have relations at all strained. The field workers' constant endeavor must be to establish feeling between the family and Institution that will assure her of a welcome at any time with kindly cooperation, and to this end she sacrifices minor details that would naturally come on return visits. The field worker endeavors to see as many relatives as possible. In this way facts omitted or overlooked by one are often recalled and told in full detail by another, and by this means information already obtained is confirmed. Every additional interview is sure to reveal new facts. Addresses of relatives who live in other sections are recorded to be used later by an investigator in that section. References to foreign countries are also kept, with the town, and wherever possible, the street address. In the case of foreign born parents, an endeavor is made to obtain data relative to the time of immigration, the town from which they came, and other information that may be useful. Whenever the field worker learns of any defectives who need Institutional care, their names and addresses are obtained, and filed with the other material. By this means useful information is available when application is made for admission to Institutions. As collected, the data are carefully recorded, and the pedigree chart made of the family. This is then put in permanent form on a sheet of white paper 8 x 10 1/2 inches, with such notes and symbols as have been adopted to designate certain traits. A full description, with all details, is typewritten and filed with the chart. 2. The Chart (Plate I). The plan of charting adopted is based on the decisions of a committee of the American Association for the Study of the Feeble-Minded held at Lincoln, Illinois, in 1910. This committee consisted of Supt. E. R. Johnstone and Dr. H. H. Goddard, of Vineland,