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32 have been detected in oyster samples from Willapa Bay. Plans are under way to separate chemically and to measure the concentration of phosphorus-32, scandium-46, chromium-51, manganese-54, iron-59, cobalt-60, strontium-90, and some of the long-lived rare earths (which are present in Columbia River water) in West Coast sea foods (72).

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A procedure for the determination of ascorbic acid in plant material is described which has been found useful in plant breeding and other plant research. It allows the rapid determination of ascorbic acid in a large number of samples of plant material with a satisfactory degree of accuracy.IN THE course of plant breeding experiments the author de-1 sired to know the ascorbic acid content of many plants at different stages of development. Available methods for the determination of this substance in plants were too time-consuming to assure a reliable comparison of values from different sources inasmuch as changes might occur in the tissue while awaiting analysis. Hence it seemed imperative to devise a method which would permit the assay of many samples in the shortest possible time. This paper describes a procedure which has enabled the author and three student assistants to make 500 assays for ascorbic acid per day and to compare the results thus obtained with those of published methods.