krause p g 1897 (2 Ergebnisse)

pp. 169-229, several figs. of molluscs on 2 (1 fold.) lithogr. pls. 8vo. Offprint, wrs. uncut.

8vo. 82 pp. Original grayish-brown printed wrappers; soiled, rear cover chipped and spotted. Ownership rubberstamp of J.F. McClendon. Good+. Scarce. "The chief interest in the metabolism of aluminium arises from its use as a constituent of food. The controversy between those who believe that aluminium compounds added to foods are harmful and those who take the opposite view has never been settled. The present investigation, begun in 1922, was undertaken with the conviction that the methods then published for the estimation of aluminium were so crude and inaccurate that the conclusions drawn are open to serious criticism. Accordingly, a delicate and accurate method has been devised and by its use new facts on this problem have been established. Two books have recently appeared which review the present status of the aluminium problem. E. E. Smith, devoting himself especially to aluminium as a native or added constituent of foods, summarizes investigations bearing on this subject. Stoklasa, after forty years of work on the distribution of aluminium in nature, publishes his results. No attempt is made here to review in detail this mass of material. The reader is referred to these two books for a more comprehensive survey." / "The present status of the problem may be summarized as follows: Aluminium occurs widely distributed in plants. In general hydrophytes contain more than mesophytes or xerophytes. The roots act as reservoirs for the aluminium which is required in the economy of the plant. Seeds and blossoms also contain aluminium. In the former it is supposed to be in some way related to germination; in the latter to color". â" Author(s). / Frank Pell Underhill and Florence Irene Peterman were from the Dept. of Pharmacology and Toxicology, Yale University. PROVENANCE: J.F. (Jesse Francis) McClendon (1880-1976) was an American chemist, zoologist, and physiologist known for the first pH measurement of human stomach in situ. From 1910 to 1939, McClendon worked at the Physiological Laboratory of the University of Minnesota Medical School, Minneapolis, serving as professor of Physiological Chemistry between 1920 and 1939.