· The Yellow Jasmine Mystery [Hercule Poirot] · Agatha Christie · ss The Sketch February 6 1924; illustrated by William Molt; this reprints the slightly revised text from chapters 9 & 10 of The Big Four (Collins, January 1927).
· The Chess Problem [Hercule Poirot] · Agatha Christie · ss The Sketch February 13 1924; illustrated by William Molt; this reprints the slightly revised text from chapter 11 of The Big Four (Collins, January 1927).
· The Baited Trap [Hercule Poirot] · Agatha Christie · ss The Sketch February 20 1924; illustrated by William Molt; this reprints the slightly revised text from chapters 12 & 13 of The Big Four (Collins, January 1927).
· The Peroxide Blonde [Hercule Poirot] · Agatha Christie · ss The Sketch February 27 1924, as “The Adventure of the Peroxide Blonde”; illustrated by William Molt; this reprints the slightly revised text from chapter 14 of The Big Four (Collins, January 1927).
The Blue Book Magazine [Vol. 46 No. 2, December 1927] ed. Edwin Balmer (The Consolidated Magazines Corporation, 25¢, 196pp, pulp)
Details supplied by Saskia van de Kruisweg.
6 · The Cowboy’s Calendar: December—“The Winter’s Camp” · Will James · fp
140 · The Enemy Strikes · Agatha Christie · gp (r); this reprints chapters 15 & 16 of The Big Four (Collins, January 1927), itself slightly revised from two stories in The Sketch.
124 · The Crag in the Dolomites [Hercule Poirot] · Agatha Christie · ss The Sketch March 19 1924; illustrated by William Molt; this reprints the slightly revised text from chapters 17 & 18 of The Big Four (Collins, January 1927).