The Gerrard Street Mystery and Other Weird Tales

Published posthumously "The four stories composing the present volume were contributed by their author at considerable intervals to different periodicals. Some time prior to his death [1888-09-27] he contemplated publishing them in book form, and actually selected and carefully revised them with that purpose in view." --"Prefatory Sketch", p.[iii]-vii, signed "R. W. D." and "Toronto, Oct 25th, 1888."; quoting p.vii

Posthumous publication (see Title reference) Search of multiple 1888-89 newspapers for 'Gerrard Street Mystery' returns one hit 2017-01-19: The Globe (Toronto) 1889-02-02 p14, "New Books at the Library", 3 copies of this one Prefatory sketch is signed R. W. D., dated Oct. 25th, 1888; identified as R. W. Douglas from seller's description on L. W. Currey.