A NEARLY TOTAL ECLIPSE OF THE MOON OBSERVED ifY MEANS OF PHOTOELECTRIC SELENIUM CELLS. CURVE TAKEN WITH THE RIMIER CELL DURING ECLIPSE OF OCTOBER 31 1902. Ri7HMER'S CELL APPLIED TO A PARABOLIC REFLEC TOR FOR OBSERVING AN ECLIPSE OF THE MOON. Cleaning Air by Washing Instead of Filtering. The Current Supplement., scientific american, 1903-10-03
A NEARLY TOTAL ECLIPSE OF THE MOON OBSERVED ifY MEANS OF PHOTOELECTRIC SELENIUM CELLS. CURVE TAKEN WITH THE RIMIER CELL DURING ECLIPSE OF OCTOBER 31 1902. Ri7HMER'S CELL APPLIED TO A PARABOLIC REFLEC TOR FOR OBSERVING AN ECLIPSE OF THE MOON. Cleaning Air by Washing Instead of Filtering. The Current Supplement., scientific american, 1903-10-03
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