Publication of this report is made possible through the cooperation 
of the National Academy of Sciences - National Research Council, Earth 
Sciences Division, Committee on Waste Disposal, Advisory to the U.S. 
Atomic Energy Commission. For the results of other NAS - NRC 
studies pertaining to the disposal of radioactive wastes, the reader is 
referred to ''The Disposal of Radioactive Wastes on Land'' NAS - NRC 
Pub. 519, April 1957, and ''Thermal Considerations of Deep Disposal 
of Radioactive Wastes", a special report by Dr. Francis Birch, NAS - 
NRC Pub. 588, September 1958. 
Reports are also in progress on the disposal of low-level wastes 
into Pacific coastal waters and on radioactive waste disposal from 
nuclear-powered ships. 
Roger Revelle 
Scripps Institution of Oceanography 
La Jolla, California 
May 1959 
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