The Mental Marvel

From Author Wars - https://authorwars.com/publications/the-mental-marvel-265318.html

Overview:

Title: The Mental Marvel
Author: Fred MacIsaac
Year: 1930
Publisher: A. C. McClurg & Co.
Price: $2.00
Pages: 323
Binding: Hardcover
Type: Novel
Title Reference: The Mental Marvel
Notes: Price on front flap (via dustjackets.com scan); flap also has photo and bio of the author. Green cloth cover with an illustration of an open book that has boxing gloves tied around it (via abebooks.com scan).