of selected samples.
Plankton Samples.
Qualitative gamma spectrometric exami-
nation of the total plankton collected from each of three nets
of different mesh,
counting of individual samples
cel44_p,144 photopeaks,
at the Co57,
determination of composition of plank-
ton by sorting of major groups.
Invertebrates.
beta counting,
samples,
Fish.
Dissection and preparation of samples,
gamma
spectrometric examination of
selected
radiochemical analyses of selected samples.
Analysis for gn©®> content of various
organs and tis-
sues of goatfish from a single school in relation
ses,
gross-
determination of
stable
zinc content of
to size clas-
samples of goat-
fish and organisms on which they were feeding.
Birds and Rats.
Samples prepared for radiochemical analysis,
but actual analyses remain
The period from July 1,
to be initiated.
1960 to June 30,
1961 will be devoted
to a continuation and completion of the above studies,
addition
of
(1)
chemical and radiochemical analysis of samples
from the pot culture
culture
with the
experiment completed at
Eniwetok;
experiment in the new greenhouse of the
(2)
pot
Department of
Botany, using Rongelap soil; emphasis is being placed on Cs137,