Notes
Published September 1914 to May 1915 as a nine-part serial in The Strand Magazine (per Wikipedia) with illustrations by Frank Wiles (part one, per ISFDB).
Published September 1914 to November 1914 with illustrations by Arthur I. Keller (presumably {{a|A. I. Keller}}) beginning Sunday, September 20, in the Sunday magazine of the New-York Tribune and The Sun (Baltimore)--and perhaps other US newspapers. One week earlier N-Y Tribune promoted it in an illustrated panel with the heading (all caps, various sizes):
Sherlock Homes Returns
in
The Highest Priced Serial Ever Published
And "... The greatest of all detectives solves a thrilling AMERICAN MYSTERY, which baffles all minds but his."
Part II concludes in the issue dated 1914-11-22, which implies a 10-part serial.
- 1st ed. as a book
-
Price from listing in "Smith, Elder & Co.'s New Books", The Spectator 114.4518 (1915-01-30) p176, under heading "New 6s. Fiction".
Publication date inferred from that item as the earliest relevant notice of the book found in search of 1915 newspapers and magazines.
