File:PSM V58 D019 Mills spectrograph of the lick observatory.png

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Summary

Description	English: Mills spectrograph of the Lick observatory
Date	between 1900 and 1901 date QS:P,+1900-00-00T00:00:00Z/8,P1319,+1900-00-00T00:00:00Z/9,P1326,+1901-00-00T00:00:00Z/9
Source	Popular Science Monthly Volume 58
Author	Unknown authorUnknown author

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