Final Report of Manhattan Investigation
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Final report of findings of the Manhattan district atomic bombs investigating groups at Hiroshima and Nagasaki(19 April 1946)
The general purpose of the mission was twofold. The more comprehensive aspect was to observe the total effects of the atomic bombs on the cities and the people exposed. The specific objective was to investigate any unique effects due to radiation.
The medical study is presented herewith. The study concerning radioactivity (Tybout) is presented in Section B of this report. The investigations of physical damage to Hiroshima (Varley) and to Nagasaki (Youngs) constitute Section C.

Letter, Henry L. Barnett


 Section A. Medical Study

Part I. Clinical and Laboratory
Chapter  I. Personnel and Procedures
 Investigating group, General sample of patients studied,
 Method of collection of data, Reliability, Data studied
Chapter  II. Description of Group Studied.
 Total group, City and sex, Hospital, Age
Chapter  III. Description of Findings
 Casualty estimates, Burns, Mechanical injuries, Radiation injuries
Chapter  IV. Cause of Injuries
 Burns, Mechanical injuries, Radiation injuries
 A. Evidence that symptoms were due to ionizing radiation
 B. Evidence concerning injury from persistent radioactivity
 C. Biological calibration of gamma ray intensity
Chapter  V. Conclusions

Part II . Pathology
Chapter I. Description of Material Studied
Chapter  II. Description  of  Findings
 Injuries other than radiation, Radiation Injuries
 A. Physiological effects in animals
 B. Pathological effects in animals
 C. Pathological effects in human beings
Chapter  III. Conclusions

Appendix I
 Report I
 Report II

Appendix II
 Report I
 Report II

 Section B. Radiation in Hiroshima and Nagasaki

I.  Summary
 II.  Gamma  Radiation  Measured  in  Japan
 A. Hiroshima, B. Nagasaki,  C. Integrated Dose from Residual Radiation
 III. Sample Analysis
 A. Photographic Films, B.Human & Animal Bone Samples,
 C. Soil & Metallic Samples
 IV.  Conclusions
 V.  Acknowledgements
 VI.  Table of Nomenclature
 VII.  References

Appendix C

  The Medical Effects of Atomic Bombing  
  Atomic Bomb Rescue and Relief Report:Dr.Takashi Nagai  
  Pathological Effects : Dr. Issei Nishimori  
  My Experience and Damages : Dr. Raisuke Shirabe  
  Dr. Raisuke Shirabe's Survey Sheets  
  Final Report of Manhattan Investigation  
  Materials and Data  
  A-bomb experiences of medical staffs  
  Exhibition Room  
  Atomic Bombing Q&A for Kids  
  Atomic Bomb Survivor Database  
  70th Memorial Ceremony  
  ABDI 50th Anniversary exhibition:Investigation just after the bombing  
  Takashi Nagai 60 years Memorial Celemony after his death  
  30th Anniversary Meeting for Establishment of Database  
  Doctors' Experience of Atomic Bombing -60th Memorial Ceremony -  
  Division of Scientific Data Registry
Biostatistics Section
Tissue and Histopathology Section
Research Reports