
The collections represent the work of hundreds of investigators,covering more than 75 years of research. Taken together, the collectionsoffer an extensive longitudinal record of craniofacial developmentamong children who did not receive orthodontic treatment.
Documentation available in the collections includes various skullx-ray images, hand-wrist films, dental radiographs, facial photographs,and study casts. Written records on the physical and educationaldevelopment of the children of various ethnicities and growth patternsalso are available.