S. P. Langley

Sur les spectres invisibles

The bolometer and radiant energy

Memoir of George Brown Goode

A proposal is herewith submitted to you for regulating, from this Observatory, the clocks of the Pennsylvania Central, and other railroads associated with it

The solar and the lunar spectrum

On hitherto unrecognized wave-lengths

The exhibit of the Smithsonian astrophysical observatory ...

On the cheapest form of light

The new astronomy

Memoir of George Brown Goode, 1851-1896, read before the National Academy, April 21, 1897

On the minute structure of the solar photosphere

Experimental determination of wave-lengths in the invisible prismatic spectrum

Langley memoir of mechanical flight, pt. I. 1887 to 1896