Browse Items (41 total)

Lampland, Carl, Blink Comparator Letter from Carl Lampland to Carl Zeiss , April 4, 1932, 1932-04-04

Zeiss Blink Comparator used at Lowell in the discovery of Pluto in 1930; Request for complete descriptive literature of the instrument in its present…

Tags: Pluto

Lampland, Carl O, Credit for the discovery of Pluto The Martian Polar Cap "Carbonic Acid" hypothesis Letter from Carl Lampland to Clyde Tombaugh, November 5, 1932, 1932-11-05

Rock salt crystals for prism purposes; Dry ice, Martian polar caps, carbon dioxide (the 'Carbonic Acid' hypothesis) and Dr. Alter's comments on life…

Tags: Astronomy, Pluto

Lampland, Carl O., Pluto orbit work Letter from Carl Lampland to Clyde Tombaugh, October 19, 1949, 1949-10-19

Letter from Carl Lampland to Clyde Tombaugh regarding Lampland's work on the measurements of positions of Pluto using the 42-inch reflector plates. …

Tags: Pluto

Lampland, Carl O., Credit for the discovery of Pluto Letter from Carl Lampland to Clyde Tombaugh, October 29, 1932, 1932-10-29

Problem with the treatment of the discovery of Pluto in Professor Baker's new book on Astronomy wherein Tombaugh's name is not mentioned as the…

Tags: Pluto

Lampland, Carl O., Credit for the discovery of Pluto Letter from Carl Lampland to Clyde Tombaugh, October 22, 1932, 1932-10-22

Problem with the treatment of the discovery of Pluto in Professor Baker's new book on Astronomy wherein Tombaugh's name is not mentioned as the…

Tags: Pluto

Lampland, Carl O., Pluto orbit work Letter from Carl Lampland to Clyde Tombaugh, June 10, 1950, 1950-06-10

Letter from Carl Lampland to Clyde Tombaugh regarding Lampland's work on the measurements of positions of Pluto using the 42-inch reflector plates.

Tags: Pluto

Lampland, Carl O., Pluto orbit work Asteroid positions Letter from Carl Lampland to Clyde Tombaugh, October 4, 1951, 1951-10-04

Tombaugh's past survey work with the 13-inch Lawrence Lowell telescope now in demand due to current calls for asteroid positions.

Lampland working…

Tags: Astronomy, Pluto

Lampland, Carl O., Pluto orbit work Application for research grant from Carl Lampland to Arthur Grad (Dept. of the Navy), March 27, 1951, 1951-03-27

Research proposal application on orbits of Pluto and photos of fields of positions of Pluto Feb. 24, & Apr. 5, 1931

Tags: Pluto

Lampland, Carl O., Pluto orbit work Methods of procedure outlined by Carl Lampland, July 8, 1949, 1949-07-08

Methods of procedure for the measurements and reductions of Pluto plates to establish the revised orbit of the planet based on an article by Dr. Gus…

Tags: Pluto

Lampland, Carl O., Blink Comparator Letter from Carl Lampland to Carl Zeiss , November 17, 1919, 1919-11-17

Order for a Stereo-Comparator with the Blink-Mikroskop in the largest size

Tags: Pluto