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Division of Entomology and Economic Zoology, and Division of Agricultural Biochemistry, University Farm, St. Paul, Minnesota
Two pairs of samples of clarified and unclarified honey were assayed for thiamine, riboflavin, pantothenic acid, nicotinic acid and ascorbic acid contents. There was a general decrease in the vitamin concentration of the clarified samples, ranging from 8 to 45%. There was no perceptible reduction in the antihemorrhagic activity of the clarified honeys compared with the unclarified controls.
2 The completion of this work was made possible through the research grant from W. F. Straub & Co., Chicago, Illinois.
Manuscript received 19 March 1943.