418 EXPERIMENT STATION RECORD. 



similar to that of Lasne, containing modifications in certain details 

 which are likely to cause error. Thomson's method of direct precipita- 

 tion of the phosphates of iron and aluminum by ammonia gave results 

 which varied with the character of the phosphates tested, and the pre- 

 cipitate always contained lime. 



A source of error in the Kjeldahl method of determining nitro- 

 gen, B. SJOLLEMA (Chem. Ztg., 21 {1897), No. 74, pp. 740, 741, figs. 3).— 

 A number of tests are reported showiug the large errors which maybe 

 introduced into the determination of nitrogen by the Kjeldahl method 

 by the bumping of the solution and the carrying over of alkali into the 

 distillate. The author describes two forms of safety bulbs which he 

 has found effective in removing all danger of error from this source. 



Review of chemistry in the form of tabular synopses, A. Buguet (Resumes de 

 cliimie sous forme de tableaux synoj)tique. Paris: Societe d'Edit Scientif. Brochure; rev. 

 in Jour. Hyg., 22 {1897), Xo. 1073, p. 180). 



On the experimental determination of the hydrothermal value of a bomb 

 calorimeter, H. W. Wiley and W. D. Bigelow (Jour. Amer. Chem. Soe., 19(1S07), No. 

 6, pp. 439-451). 



Yellow light for the polarimeter, F. Dupont (Bui. Soc. Chim. Paris, 17(1897), No. 

 12, pp. 584, 585). 



Spontaneous combustion of molasses, J. T. Crawley (Jour. Amer. Chem. Soc, 

 19 (1897), No. 7, pp. 53S-542). 



On the intervention of manganese in the oxidation due to laccase, G. Ber- 

 trand (Bui. Soc. Chim. Paris, 3. ser., 17 (1897), No. 12, pp. 619-624). 



On the oxidizing power of manganese salts and on the chemical composition 

 of laccase, G. Bertrand (Bui. Soc. Chim. Paris, 3. ser., 17 (1897), No. 15, pp. 753-756). 



On the composition and pentosans of peat, on fermentation experiments with 

 peat, and on the supposed formation of humin from sugar by means of potas- 

 sium permanganate, II. von Feilitzen (Ueber die Zusammensetziing und die Pcntosane 

 des Torfes, iiber ( i iihruu gsversuclie mit Torf, und iiber die angebliche Humiuhildung aus 

 Zueker mit Katiumpermanganat. Gottingen: Yandenhoeeh $• Bupreeht, 1897). 



The chemistry of starch, C. J. LiNTNER (Chem. Ztg., 21 (1897), Nos. 74, pp. 737, 

 738; 75, pp. 752-754). — This is a resume of work done by different chemists on this 

 subject. 



Products of the saccharification of starch by diastase, P. Petit (Compt. Bend. 

 Acad. Sci. Paris, 125 (1897), No. 6, pp. 355-357). 



On the specific rotation of maltose and soluble starch, H. T. Brown, G. H. 

 Morris, and J. II. Millar (Chem. News, 75 (1897), No. 1939, p. 43). 



A recalculation of Weill's table of starch equivalent to copper found, based 

 on the factor 0.92, W. H. Krug (Jour . Amer . Chem. Soc. , 19 (1897), No. 6, pp. 452-454). 



On the relation of the specific rotatory and cupric-reducing powers of the 

 products of starch hydrolysis, EL T. Brown, G. H. Morris, and J. H. Millar 

 (Chem. News, 75 (1897), No. 1939, p. 43). 



The determination of starch in the grains of cereals, L. Lindet (Bui. Soc. Chim. 

 Paris, 15-16 (1S96), pp. 1163, 1164). 



The identity of dextrose from different sources -with special reference to the 

 cupric oxid reducing power, C. O'Sulliyan and A. L. Stern (Jour. Chem. Soc. 

 [London'], 69 (1896), pp. 1691-1702). 



A resume of progress in the chemistry of the carbohydrates during 1896, W. 

 E. Stone (Amer. Chem. Jour., 19(1897), No. 7, pp. 608-621). 



On the recognition of carbohydrates, B. Sjollema (Chem. Ztg., 21 (1897), No. 74, 

 p. 739). . ' 





