Books by Enoch Karrer:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Karrer, Enoch, 1887-: Contrast sensibility of the eye (U.S. Dept. of Commerce, Bureau of Standards :, 1920), also by Edward P. T. Tyndall and United States. National Bureau of Standards (page images at HathiTrust)- Karrer, Enoch, 1887-: A method of determining the radiant luminous efficiency of a light source by means of a cell whose transmission curve is identical with the luminosity curve of the average eye ... (Press of the New era printing company, 1915) (page images at HathiTrust)
- Karrer, Enoch, 1887-: Relative spectral transmission of the atmosphere ([U.S. Dept. of Commerce, Bureau of Standards] :, 1920), also by E. P. T. Tyndall and United States. National Bureau of Standards (page images at HathiTrust)
- Karrer, Enoch, 1887-: Use of the Ulbricht sphere in measuring reflection and transmission factors ([U.S. Dept. of Commerce, Bureau of Standards] :, 1921), also by United States. National Bureau of Standards (page images at HathiTrust)
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