Description
Hubble's initial data on 24 nebulae outside the Milky Way.source
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A
Course in Methods of Data Analysis (2nd ed), Duxbury.References
Hubble, E. (1929). A Relation Between Distance and Radial Velocity
Among Extragalactic Nebulae, Proceedings of the National Academy
of Science 15: 168--173.