Letter | Published:

Radiographs of Insects

Nature volume 130, pages 436437 (17 September 1932) | Download Citation



FINDING no record that radiographs of insects were ever made, last summer we took several hundred radiographs of some forty different species of insects. The X-ray tube, constructed in the laboratory, was of lithium glass, and furnished with a very thin window allowing rays of sufficient softness to be used. 3500 volts was the lowest potential with which this tube could be run, and with this potential the venation of wings was shown very distinctly. During the whole work, potentials ranging from this lower limit to 15,000 volts have been used, according to the size of the insect. The insect was placed directly on the photographic film, which was of the type manufactured by the Eastman Kodak Company for dental work.

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    Other reproductions of our radiographs will be found in the September-October number of Radiography and Clinical Photography, published by the Eastman Kodak Company.

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  1. The Walter B. James Laboratory for Biophysics, The Biological Laboratory, Cold Spring Harbor, L.I., New York.

    •  & IRWIN SIZER


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