Publisher's Synopsis
Excerpt from Positive and Negative Photoelectrical Properties of Molybdenite and Other Substances
The object of the present paper is to place on record some recent observations on photosensitivity' and in particular the photo negative phenomena observed in a certain sample of molybdenite.
The importance of having a record of such unusual phenomena will be apparent from the fact that heretofore the mention of such data has been merely incidental.
These isolated bits of information have been assembled in the present paper in order to Show their relation to the newly observed data. 't he whole compilation is but little more than a starting point in a new line of research that may yield information which Will explain the phenomenon of photoelectric sensitivity.
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