George Ellery Hale - Böcker

Photography of the Solar Prominences

Photography of the Solar Prominences

New Heavens

New Heavens

Ten Years' Work of a Mountain Observatory

A Brief Account of the Mount Wilson Solar Observatory of the Carnegie Institution of Washington

Ten Years' Work of a Mountain Observatory

A Brief Account of the Mount Wilson Solar Observatory of the Carnegie Institution of Washington

Study of Stellar Evolution

An Account of Some Recent Methods of Astrophysical Research

Study of Stellar Evolution

An Account of Some Recent Methods of Astrophysical Research

Rumford Spectroheliograph of the Yerkes Observatory

Rotation Period of the sun as Determined From the Motion of the Calcium Flocculi

Rumford Spectroheliograph of the Yerkes Observatory

Rotation Period of the sun as Determined From the Motion of the Calcium Flocculi

New Heavens

National Importance Of Scientific And Industrial Research, Issues 1-8

National Importance Of Scientific And Industrial Research, Issues 1-8

New Heavens

New Heavens