NOT FOR PUBLICATION & ‘PRELIMINARY REPORT cep 13 1088 411006 GROSS BETA RADIOACTIVITY OF PLANKTON AT RONGRLAP ° ATOLL, 1954-1958 | by Kelshaw Bonham December 15, 1958 BEST COPY AVAILABLE Y BORATORY OF RADIATION BIOLOG ue “AL UNIVERSITY CF WASHINGTON SEATTLE 5, WASHINGTON =