File:Duboscq colorimeter 1870.jpg

Duboscq_colorimeter_1870.jpg(321 × 506 pixels, file size: 27 KB, MIME type: image/jpeg)

Summary

Description
English: Drawing of one of the first colorimeters, built by Jules Duboscq in France.
Date
Source Page 153 of Chemical News (March, 1870)
Author William Crookes, Editor

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current00:15, 6 July 2008Thumbnail for version as of 00:15, 6 July 2008321 × 506 (27 KB)Astrochemist{{Information |Description={{en|1=Drawing of one of the first colorimeters, built by Jules Duboscq in France.}} |Source=Page 153 of ''Chemical News'' (March, 1870) |Author=William Crookes, Editor |Date=1870 |Permission= |other_versions= }} See [http://boo
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