Image: PSM V85 D521 Group photograph of herman helmholtz and academic friends
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Description: Group photograph of Herman Helmholtz, his wife (seated) and academic friends Hugo Kronecker (left), Thomas C. Mendenhall (right), Henry Villard (center standing)
Title: PSM V85 D521 Group photograph of herman helmholtz and academic friends
Credit: Popular Science Monthly Volume 85 (1914)
Author: Dr. S. J. Meltzer
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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