Edwin P. Alexander. American Locomotives ... 1900-1950 (1950

     Edwin P. Alexander. American Locomotives ... 1900-1950 (1950; reprint by Bonanza Books n.d.) A catalogue raisonné of steam locomotives built between the dates given. Photo and drawing of each, with technical data and a historical note. Alexander claims every locomotive is significant in some way, so his notes are rather repetitive. A good reference if you happen to need some data about one of the locos. Since they are in chronological order, the absence of an index by type, builder, etc,  is inexplicable. Printing quality is above average for Bonanza Books, who seem to have specialised in muddy photo-reproduction of popular books. * (2007)