, fe ee ; 4 te peo te tft re 7 ald Jadalee wate. ae. wih Lae meed en R. F. PALUMBO 183 tion existierte. Zwe: Pflanzen, Guettarda und Portulaca, die nach 10 Monaten noch ungesund waren, hatten sich nach 16 Monaten gebessert. Photographien einiger der erholten PAanzen sind diesem Bericht beigelugt, sowie eine Besprechung der Mittel, ausser den Strahlungen, von denen iihnlicher Schaden wir der an den Pflanzen der Korallenattolle des Pazifik berichtet wordenist. radioactivity in aquatic and terrestrial organisms to many months. The results of the investigations conducted in 1946,1947,@ 1948, 1949,and 1952) indicated the need for a study of the reinvasion or regrowth of organisms in an area contaminated by radiation. A study of this nature was undertaken after a nuclear device had been detonated or after intervening periods varying from several (Nectar) at Eniwetok Atoll in the spring of 1954. Facilities were made available at the Eniwetok Marine Biological Laboratory on Elmer(Parry) INTRODUCTION Since the summer of 1946, the Laboratory of Radiation Biology of the University of Washing- ton has conducted studies at the Eniwetok Proving Ground to evaluate the distribution of of the atolls of the western Pacific and adjacent areas. These studies were made either shortly following the detonation of an atomic device Teiteiripucchi (Gene) Nector_ site Saniidefonso (Edna) Ruch (Clara) — - Bogombogo (Belte) Bogallua (Alice) — ~~ e > oe Cocnit Bogon (Irene) Engebi (Janet) Aitsu (Olive) mersy) an Aoraanbiru (Vera) Runit ( Yvonne) Aniyooni (Bruce) Japtan (David)—_ S > ree. ert Parry (Etmer)—_ NAUTICAL MILES oo, e 3 4 5 Mui (Henry) Fic. 1. Eniwetok Atoll.

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