Excerpt from The Study of Human Heredity: Methods of Collecting, Charting and Analyzing Data
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 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.
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