ix, [3], 264 pp. Illustrated with plates from photos, etc. (8vo) salmon cloth, dust jacket. First Edition.

Signed by 18 members of the Berkeley Lab, where the fuel for the atomic bomb was created, to be mated with the casing devised at Los Alamos. On the half-title it is signed by Berkeley Lab Director Ernest O. Lawrence, and on the facing leaf (front endpaper verso) by 17 other scientists - most from the Berkeley Lab - involved in the Manhattan Project, including Donald Cooksey; W.B. Reynolds; Wm. Parkins; Ted Finkelstein; Frank Oppenheimer; K.R. McKenzie; E.J. Lofgren; Edwin McMillan; A.C. Helmholz; and a few others. Taped to the front pastedown is a photograph, reduced, of an award certificate that was signed by Secretary of War Henry Stimson, awarded to the University of California for "valuable service rendered to the Nation on work essential to the production of the Atomic Bomb, thereby contributing materialy to the successful conclusion of World War II." The date on the certificate is 6 August 1945, the day the atomic bomb was dropped on Hiroshima. A very significant copy of the first official report on the atomic bomb project, which not only hastened the end of the second world war, but materially altered the paradigm of international relations.