Books by Edwin Powell Hubble
The Edwin Hubble papers
The Edwin Hubble papers
The Hubble atlas of galaxies
The Hubble atlas of galaxies
The nature of science, and other lectures
Our sample of the universe
Our sample of the universe
The observational approach to
The observational approach to cosmology
The realm of the nebul©Œ
The realm of the nebul©Œ
Distribution of extra-galactic
Distribution of extra-galactic nebulae
Red-shifts in the spectra of n
Red-shifts in the spectra of nebulae
The velocity-distance relation
The velocity-distance relation among extra-galactic nebulae
Distribution of luminosity in
Distribution of luminosity in elliptical nebulae
The nebulous envelope around N
The nebulous envelope around Nova Aquilae no. 3
A spiral nebula as a steller s
A spiral nebula as a steller system
Extra-galactic nebulae
Extra-galactic nebulae
N.G.C. 6822
N.G.C. 6822
A general study of diffuse gal
A general study of diffuse galactic nebulae
The source of luminosity in ga
The source of luminosity in galactic nebulae