Browse Items (1707 total)

"Velocities of Particles in the Tail of Halley's Comet"

Lowell, Percival 1910-07

"Comet's Tail"

Lowell, Percival 1910-03-05

"The Sun as a Star"

Lowell, Percival 1911-04 Popular Astronomy

"Total Lunar Eclipse"

Lowell, Percival 1910-11-16

"The Hood of a Comet's Head"

Lowell, Percival 1910-08-29

Astronomy and Planetary Notes

Slipher, E. C. Undated

A Proposal for the Investigation of the Question of Solar Variation

Slipher, E. C. Undated

Director's Meeting Notes

Slipher, E. C. 1959-04-30

Astronomical Society of the Pacific

Slipher, E. C. 1958

Talk by Ralph Sturm on the Lumicon

Slipher, E. C. 1956-03-07