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September 1923

A SHADOWGRAPH METHOD OF RECORDING OUTLINES OF HANDS

Author Affiliations

BOSTON
From The Childrens Medical Service, Massachusetts General Hospital.

Am J Dis Child. 1923;26(3):280-284. doi:10.1001/archpedi.1923.04120150087009
Abstract

The method here described was devised to make a permanent record of the shape and size of the hands of children. The purpose was to obtain (1) a record on which proportions could be measured for the study of pathologic cases; (2) records for future reference and comparison, and (3) a picture that could be utilized for teaching purposes.

We have found that suitable shadowgraphs can be easily obtained in the following way: The hand is firmly placed with palms down over a sheet of sensitized printing paper (Eastman's "velox"). A 110 volt, 100 watt Edison mazda incandescent lamp is then placed 48 inches directly above the middle axis of the hand, and the sensitized paper is exposed for a period of ten seconds. This procedure should be carried on in a dimly lighted room. The print is then developed with the usual developing and fixing reagents.

The method will

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