Conor--thanks for the update. I'm sorry I haven't communicated this earlier, and I hope it didn't cost you lots of hard work--but I found "Dr. Thorndyke Intervenes" through interlibrary loan and have finished scanning it. I'm now about 25% through proofing it, and will send it to HarryT here and to Colin Choat at Project Gutenberg Australia (PGA) just as soon as I'm done proofing. I hope this will save you the tedium of scanning and proofing.
I collected the five previously published stories assembled in the 1930 publication of "Dr. Thorndyke Investigates" and sent it to PGA, and they've since posted it. Here's the publication info I sent along with the text file:
This collection of previously published short stories was published in the "Treasuries of Modern Prose" series for the University of London Press, Ltd, 10 & 11 Warwick Lane, E.C.4, by Hazell, Watson and Viney , Ltd., London and Aylesbury in 1930. There's a short note included: "Acknowledgments are due to the Author and to Messrs. Hoder & Stroughton, Ltd., his publishers, for permission to use the stories in this book."
The volume was acquired via our Interlibrary Loan service from:
The British Library
Boston Spa
P.O. Box 117
Wetherby
West Yorkshire LS23 7HT
United Kingdom
The contents are listed within the volume as follows:
I THE BLUE SEQUIN (from The Singing Bone) Page 9
II THE NEW JERSEY SPHINX (from Dr. Thorndyke's Case Book) Page 33
III THE MAGIC CASKET (from The Magic Casket) Page 68
IV THE PATHOLOGIST TO THE RESUE (from The Magic Casket) Page 101
V THE TOUCHSTONE (from Dr. Thorndyke's Case Book) Page 129
All five stories are already contained in GPA's "Dr Thorndyke Short Story Omnibus (1928), a.k.a. The Famous Cases of Dr. Thorndyke." Four of the attributions are in agreement. However, you'll notice a discrepancy in the GPA file where "The Blue Sequin" is attributed to JOHN THORNDYKE'S CASES 1909, while Dr. Thorndyke Investigates attributes "The Blue Sequin" to THE SINGING BONE. Not having the latter in front of me, I'm not sure which is correct. I've followed the GPA attribution in the attached text.
In addition, Mr. Choat assembled and listed the stories and essays in "Dr. Thorndyke's Crime File," (1941) which includes the following:
MEET DR. THORNDYKE (essay)
THE EYE OF OSIRIS
THE ART OF THE DETECTIVE STORY (essay)
THE MYSTERY OF ANGELINA FROOD
[5A KING'S BENCH WALK] This piece is not available in this ebook
MR. POTTERMACK'S OVERSIGHT.
So we're still looking for "5A King's Bench Walk" (short story, I think). And your reference to "Flighty Phyllis" is intriguing. I found it on "Google Books" (only selected pages) at this link:
http://books.google.com/books?id=Y0i...age&q=&f=false
Cheers to all,
Steve