โ Scribed by A.J. Allen; M.B. Sampson; R.G. Franklin
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by greatly increasing the frequency induces parallel leakages with subsequent error in measurement. Therefore in the design of a conductivity cell of small volume concessions must be made on one or more of these points.
๐ SIMILAR VOLUMES
A polysaccharide fraction from phosphoesterase preparations from calf intestinal mucosa was obtained by precipitation with borate and the relation of this polysaccharide to the blood group substances was demonstrated. Since the relation of the Type 14
A Procedure for the Preparation of 2-Desoxy-D-glucose.--FRANCiS B. CRAMER. Moderate quantities of 2-desoxy-D-glucose have been repeatedly prepared for use in experimental work being carried out at this laboratory. The procedure evolved is a modification of the original glucal method of Bergmann (1).
of Choline Oxidase Activity in Rat Liver during 3'-Methyl-4-Dimethylaminoazobenzene Carcinogenesis.--G. E. WOODWARD (Cancer Research, 11,918 (1951). The rate of oxidation of choline at pH 7.8 in liver homogenates from rats on a carcinogenic diet containing 3'-methyl-4-dimethylaminoazobenzene (3'-Me-
Thymine, a constituentof desoxypentosenucleic acids (DNA), had been found by Hunter to produce an intense red color when coupled with p-diazobenzenesulfonic acid. It had been measured in hydrolysates of DNA according to the Hunter procedure by Woodhouse, by Pircio and Cerecedo, and by Day et al. The