The Joint Atomic Bomb Investigating Group (Medical). and particularly to the following individuals:
Col. Stafford L. Warren, Medical Corps, United States Army, for his evaluation of medical data,
Capt. Henry L. Barnett, Medical Corps, United States Army, for his evaluation of medical data,
Dr. R. Serber, for his comments on flash burn,
Dr. Hans Bethe, Cornell University, for his information of the nature of atomic explosions,
Majors Noland Varley and Walter C. Youngs, Corps of Engineers, United
States Army, for their evaluation of physical damage to structures,
J. 0. Hirschfelder, J. L. Magee, M. Hull, and S. T. Cohen, of the Los
Alamos Laboratory, for their data on nuclear explosions,
Lieut. Col. David B. Parker, Corps of Engineers, United States Army, for editing this report.
INTRODUCTION
Statement by the President of the United States: "Sixteen hours ago an American airplane dropped one bomb on Hiroshima, Japan, and destroyed its usefulness to the enemy. That bomb had more power than 20,000 tons of T.N.T. It had more than two thousand times the blast power of the British Grand Slam, which is the largest bomb ever yet used in the history of warfare".