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ACKNOWLEDGEMENTS
The work reparted on here was performed under the direction of
Dr. Lester Machta, Chief, Special Projects Section,
Services Division, U, S. Weather Bureau.
was established by
Operations Office,
Director, and that
Daniel E. Lynch of
coordinator of the
Scientific
The monitoring vrogram
the Health and Safety Laboratory, New York
Atomic Energy Commission, Merril Eisenbud,
office provided the radiological data, Mr.
the Health and Safety Laboratory served as
program.
,
Many helpful suggestions were received from colleagues in the
Special Projects Section, D. Lee Harris, Kenneth M. Nagler, Francis
Pooler, Jr., and Leo R, Quenneville. The staff of this section
performed the laborious and painstaking plotting of data and prepara~
tion of the finished manuscript.