Place of publication: London
Collation: 24 p. ; 19 cm.
Notes: First letter dated September 18th, 1886. Second letter dated September 27th, 1886. Publisher's advertisements on p. 21, 22 and 24.
Place of publication: London
Collation: 31 p. : ill. (front. port.) ; 18 cm.
Notes: "Colonel Ingersoll's works" listed on back cover. No. 7a in Stein checklist, but pagination differs. Part of the NSS pamphlet collection.