New York: Harper & Brothers, (1955).
First edition. Endpapers foxed, a tape shadow on the rear endpaper and flap where a previous owner had formerly affixed the jacket to the rear pastedown, very good in very good dustwrapper. Viking Hall bookplate on the front fly presenting the book with the compliments of the Martin Company of Baltimore, Maryland at the opening of Viking Hall, The Hayden Planetarium, New York, June 30, 1955. Signed by Rosen, who as a scientific officer in charge of the Viking Project, as well as by J. Preston Layton (Martin company crew chief of the first Viking Project), and W.P. Murphy (Navy crew chief of the same project). All are mentioned extensively in the text.