The volume contains Colin Campbell’s signature on the flyleaf, a sketch at page 84, and a few pencil notes in his hand dispersed through the printed text. Inside the front cover are pasted a cutting from a bookseller's catalogue (folio 1) and a cutting from an unidentified newspaper containing a review of the book (folio 2).
Two letters, 1925, to Campbell from Professor Francis Ll. Griffith in search of a copy of the book, which were formerly loosely enclosed at the title page, have also been tipped in inside the front cover. Photographs (folios 5-9), presumably taken by the author, are tipped in at relevant places in the text. Inside the back cover is a copy in a contemporary British hand (apparently not Campbell's) of a review of the book in "Revue de l'histoire des religions" by George Foucart (folios 10- 16).