Books by James Edward Keeler
Photographs of nebulae and clusters made with the Crossley reflector
Photographs of nebulæ and clus
Photographs of nebulæ and clusters
On the spectra of the Orion ne
On the spectra of the Orion nebula and the Orion stars
Physical observations of Mars
Physical observations of Mars made at the Allegheny Observatory in 1892
Visual observations of the spe
Visual observations of the spectrum of [beta] Lyræ
Earthquakes in California in 1
Earthquakes in California in 1889