370 EXPERIMENT STATION RECORD. 



[Magnesium and calcium metabolism in] chorea (St. Vitus's dance), 

 J. AuLDK (Reprint from N. Y. Med. Times, WJl, Mar -Apr., pp. /6).— This dis- 

 cussiou of pathological conditions contains data of interest in connection with 

 the general question of mineral metabolism. 



The question of mineral matter in the diet, i)articularly with reference to the 

 health of children, is taken up, as are other similar topics. 



The reactions between chemical compounds and living- muscle proteins, 

 V. H. Veley (Jour. Chcm. Soc. [London^, 99 {1911), No. o80, pp. 180-191, dgm. 

 j)^ — When a living muscle is immersed in solutions of certain compounds the 

 author found that " a chemical change takes place between the solute and the 

 muscle proteins or their initial hydrolysis products; its rate can be measured 

 by the heights of response to induction shocks used as an indicating record. . . . 



"If the hypothesis be correct that the chemical changes discussed . . . are 

 due to a reaction between the compounds whether acid or base, and the poly- 

 peptids, either formed by hydrolysis of the muscle protein or present by virtue 

 of the moribund condition of the muscle, then amino acids in not too highly 

 concentrated solution should produce no effect. Results are given in the case 

 of amino acetic acid in proof of this line of argument." 



[Work of the Carnegie nutrition laboratory], F. G. Benedict (Carnegie 

 Inst. Washington Year Book, 9 {1910), pp. 119-19-',; reprint).— An account is 

 given of the improvements and changes made in the laboratory equipment, the 

 investigations now in progress are described, and abstracts are presented of 

 papers which have been published during the year. 



ANIMAL PRODUCTION. 



Feeding stuff inspection {Maine Sta. Off- Insp. 31, pp. //5-6^). — Analyses 

 are reported of meat scrap, cottonseed meal, linseed-oil meal, gluten feed, dis- 

 tillers' grains, wheat offals, molasses feed, hominy feed, dried-beet pulp, corn 

 meal, and proprietary mixed feeds. A discussion of a recent amendment to the 

 state feeding stuff' law and a list of commercial feeds containing whole weed 

 seeds are also given. 



Notices of judgment {U. 8. Dept. Agr., Notices of Judgm,cnt 809, 810, pp. 2 

 each). — These relate to the misbranding of stock feeds. 



[Analyses of] feeding stuffs, J. Hendrick {Trans. Highland and Agr. Soc. 

 Scot., 5. ser., 23 {1911), pp. 218-221).— Analyses are reported of soy beans, lin- 

 seed cake, rape cake, oatmeal siftings, and a condiment. 



Adulteration of linseed cakes and linseed meals in Belgium, L. Bussard 

 {Ann. Falsif., J, {1911), No. 21, pp. 30, 31; ahs. in Analyst, 36 {1911), No. 1,22, 

 p. 218). — The principal adulterants of linseed meal in the samples examined 

 were sand and by-products of rice, cottonseed, peanuts, and flaxseed. 



The energy of digestion and the specific dynamic effect of feeding stuffs, 

 N. ZuNTZ (Med. KHnik, 6 {1910), Nos. 8, pp. 309, 310; 9, pp. 351-351,; Separate, 

 pp. 1.',). — This is a summary of recent investigations on this subject. 



The dextrose of the egg and its biological significance, V. Diamare 

 {Rend. Aecad. Sci. Fis. e Mat. Napoli, 3. ser., 16 {1910), pp. 21,2-2.',-',; ahs. in 

 Jour. Chem. Soc. [London], 100 {1911), No. 580, II, p. 129).— The eggs of the 

 domestic fowl and of the Grecian tortoise when approaching maturity in the 

 ovary contain dextrose, of which equal amounts were removed by dialysis and 

 hydrolysis, respectively. In the younger eggs the proportion of dialyzable 

 sugar was less and in the very smallest eggs no reducing sugar was present. 



On the constitution of the metacarpus in warm and cold blooded horses, 

 J. H. W. T. Reimers {Cultura, 22 {1910), No. 268, pp. 599-611, fig. i).— This 



