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Magnesium Hydride in Sun Spot

1911

Comet Moorhouse

1905-1911
Photograph showing Titanum Oxide spectrum, compared with the banded Spectrum of the Third type stars, as represented by Omicron Ceti in glazed frame. I. Spectrum Omicron Ceti ( Slipher), II. Spectrum of TI Oxide (Fowler).

Photograph showing Titanum Oxide spectrum

1911
Photograph of spectra of Scandium: I Arc flame & Fe, II Arc, III Arc, IV Arc in hydrogen, V Arc in air showing flutings in oxide, VI Arc in hydrogen, showing absence of the oxide flutings

Photograph of spectra of Scandium: I Arc flame & Fe

1911
Photographs (5) of the spectrum of magnesium hydride, 1 taken with small Littron spectrograph, 2 to 5 general map of magnesium hydride from 5622 to 4600.

Five photographs of the spectrum of magnesium hydride

1911