Credit for the discovery of Pluto
The Martian Polar Cap "Carbonic Acid" hypothesis
Letter from Clyde Tombaugh to Carl Lampland, November 1, 1932

Credit for the discovery of Pluto
The Martian Polar Cap "Carbonic Acid" hypothesis
Letter from Clyde Tombaugh to Carl Lampland, November 1, 1932

Pluto

Lampland, Carl O.

Tombaugh, Clyde W.

The Martian Polar Cap "Carbonic Acid" hypothesis

Professor Baker's book and credit for the discovery of Pluto. Rock salt crystals for prism purposes. Dry ice, Martian polar caps, carbon dioxide (the 'Carbonic Acid' hypothesis) and Dr. Alter's comments on life on Mars.

Tombaugh, Clyde W.

1932-11-01

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Handwritten letter

English

Text