It's a great overview of American popular music of the period, plus it's full of fascinating but obscure facts, rare photographs, internal Edison memoranda, etc. 104 pages with special end papers. Ron also has some very high quality reprints of original Edison documents available. Catalogs 140 records from during the Great War. Bound pages from Ron's now out of print 1982 book of the same title, with reprints of record catalog materials and other goodies from the 1910's and 1920's.
Few copies remain.
How to make it run the way the factory intended. Includes the 1923 update. Operating instructions for Edison's rare first all-electric phonograph, plus historical notes. Their stated goal is to help get as much true sound as possible from phonorecord grooves. The quality is quite high, and well worth the price of a subscription.