METEOEOLOGY — WAXES. 311 



usini; for this purpose t;arlic vineixar where advisable, to ocoasionally refresh 

 the stored nnistard by uiilliiiK with fresh mustard and some acetic acid, to 

 mash la thiclv, and finally, to keep the finished product in a cool place. Steriliz- 

 inj; the mustard thus far has not .iiiven j^ood results. 



Clarifying powders in sugar manufacture, J, J. Hazewinkel {Mcded. 

 Procfslat. Jura-Suikerindiis., I'.ilo, .Vo. 33, pi). 299-307). — Tests to determine 

 the advisability of employing a clarifying pow^dor (aluminum sulphate and 

 sodium sulphite) in sugar manufacture are reported. 



The sulphuring of wool, A. Reychleb (Bui. Soc. Chim. Bclg., 23 (1909), No. 

 J2, itp. J,7l-',lo; (ihs. in Cliriii. Ztg., 3', (1910), No. 25, Rcpert., p. 103).— The 

 combining;; of sulphurous acid witli wool proceeds in two ways, namely, (1) 

 by chemical absorption which at first is rapid, then gradually diminishes, and 

 finally reaches a certain limit, and (2) by solution of the gaseous sulphurous 

 acid. The author has constructed an apparatus for measuring the absorption 

 of sulphurous acid by the wool. 



Hydrolysis of cellulose with hydrofluoric acid, J. Ville and W. Mestrezat 

 (Vuinpt. Rend. Acad, ^'c^. [/'«r/.s|, I.JO (1910). A'o. 12, pp. 783, 7'S//).— Hydrolyz- 

 ing 100 gm. of dry cellulose with a 50 per cent solution of hydrofluoric acid 

 yielded 41 gm. of glucose in G hours. 



The behavior of fluorids in the preservation of wood, R, Nowotny (Osicrr. 

 ChciH. Ztg., 13 (1910), yo. 7, pp. Sl-S'i). — A study in reference to the behavior 

 of zinc fiuorid solution and zinc chlorid-sodium tiuorid solution and of various 

 methods in impregnation of wood. 



[Miscellaneous analyses], W. P. Gamble (Ann. Rpt. Ontario Agr. Col. and 

 E.rpt. Farm, 35 (1909), pp. 90-93). — Analyses are reported of potable waters, 

 ashes, fertilizers, bone phosphate, bone meal, potassium sulphate, ground cap- 

 lin. ground kelp, limestone, and sand. 



Report of the Stein analytical-chemical laboratory for 1908, F. Christen- 

 sen (Tidsykr. Landiikonoini, 1909, No. 6, pp. 329-355). — Results of analyses of 

 feeduig stuffs, fertilizers, and dairy products are reported and discussed. 



METEOROLOGY— WATER. 



Bulletin of the Mount Weather Observatory (U. S. Dcpt. Agr., Bui. Mount 

 Wvatlirr Obscrv., 2 (1910), pts. .',, pp. 111 + 183-278, pis. 5. figs. 18, charts 6; 5, 

 pp. ■279-3Ji5, figs. 3, charts 6). — These numbers contain the following articles: 



Part 4. — Vertical Temperature Gradients as JNIodified by Seasons and by 

 Storm Conditions (illus. ), by W. J. Humphreys; Periodic Variation in the 

 Velocity of the Centers of Higli and Low Pressure, by E. Gold ; The Velocity 

 of the Centers of High and Low Pressure in the United States, by C. F. von 

 Herrmann (E. S. R., 19, p. 10) ; Changes of Atmospheric Density in Storms 

 (illus.), by J. I. Craig; Pyrheliometer and Polarimeter Observations, by H. H. 

 Kimball; Recent Building Operations at Mount Weather. Va. (illus.), by 

 A. J. Henry; The Construction of a Weather Bureau Kite (illus.), by A. J. 

 Henry; The New Kite Reel (illus.), by W. R. Blair; and Upper Air Data for 

 April, May, and June, 1909 (illus.), by W. R. Blair. 



Part 5. — Atmospheric Phenomena and Ilalley's Comet, by W. J. Humphreys; 

 The Isothermal Layer and the Temperature of the Earth, by W. J. Humphreys; 

 Latitude Effect on thie Temperature and Height of the Upper Inversion, by 

 W. J. Humphreys; The Atmosphere, by R. S. Woodward; Misleading Names 

 for Winds, by C. Kassner; and Upper Air Data for July, August, and Septem- 

 ber, T.iOit (illus.), l)y W. R. Blair. 



Monthly Weather Review (Mo. Weather Rev.. 38 (1910). No. 3, pp. 329-.506. 

 /igs. 18, charts J'l). — This number contains the usual climatological sununaries. 



