1. Anderson, J. R., Goudie, R B, and Gray, K. G. (1959). Scot. med. J., 4, 64.
2. B.) was identified independently by;acid (B. A. I, B Amino-isobutyric;Furthermore Awapara; and Gartler (1959) to be a product of thymine metabolism. Examination of urine from victims of accidental whole body irradiation by,1951
3. I The method of Rubini;et al; comprises decolorization with charcoal, desalting with resin, and two-way chromatography. After ninhydrin staining the unknown is compared visually with standards,1959
4. In the high-voltage electrophoresis method of Gartler (1959), after separation and ninhydrin staining the paper is scanned. Advantages are speed and possibly accuracy, but the high cost and unfamiliarity of the Received for publication,1962
5. , Gray, K. G., Beck, J. S., and Kinnear, W. F. (1961). Lancet, 2, 456.