310 EXPERIMENT STATION EECORD. 



Siiponificatioii with glycerin and soda was compared with the usual method 

 of saponification with alcohol and potash. The figures with glycerin were regu- 

 larly •'*' to 4 lower, and this method is therefore considered unsatisfactory. 



On the use of chromed hide powder in the determination of tannin, E. 

 XiiiouL (Bill. *S'oc. Chim. Belg., 20 (1906). Xo. 7. pii. .i.iO-.l'/O ) . — Comparative 

 tests of hide powders containing from 0,6 to 5 per cent of chromium oxid are 

 reported. The author gives preference to the use of powders only feehly charged 

 with chromium. 



Examination of some Western Australian barks, E. A. Mann and It. E. 

 CowLES (Jour. Soc. Chem. Indus., 23 {1906), A'o. 11, pp. 831, 832). — Determina- 

 tions were made of the percentages of tannin in the barks of a number of com- 

 mon trees in Western Australia with the following results : Acacia decurvens, 

 15.1 per cent; Eucalyptus salmonopliloia, 1G.9, 19.8, and 12.25 per cent; E. loai- 

 phlcba, 10.6 per cent; E. longicornis, 8.73 per cent; E. redunca, 12.5 per cent; 

 E. occidenialis. 84.57, 39.3, and 44.5 per cent; and E. coruvla 10.1 per cent. 



[Chemical work for the agricultural department of Western Australia], 

 E. A. ]Mann (TIcs'^' Aitst. Govt. Lab. Bill. ,i, pp. 2-'>-31, pis. 4). — The separatiisn 

 and study of poisonous principles in various plants, including especially poison 

 bush (Gastrolohitini calijcinum and OxijIohuuH parrifloruni), Indigofera hovi- 

 perda, and dai'uel or drake (Lolium tcmiilciitum), which have proven injurious 

 to stock, are briefij' reported, as well as comparisons of total and available 

 phosphoric acid and potash in certain typical soils of Western Australia, anal- 

 yses of various lime and guano deposits, analyses of soil from a white ant hill 

 showing an increase of total and available fertilizing constituents over sui'- 

 rounding soil, and miscellaneous analyses. 



Practical methods for identifying and estimating boric acid together 

 with rules for detecting forbidden preservatives, J. Prescher {Die prak- 

 tischen Metlioden der Bcstimmung und des Nachtceises der Borsdure, nebst 

 Aivweisung zur Untersuchung auf verboteiie Konservierungsmittel. Liibcck: 

 Charles Coleman, 1906, pp. 56, illiis.; rev. in Osterr. Chem. Ztg., 9 {1906), A^o. 17, 

 p. 2.'i0). — The directions which are given correspond to the law regarding the 

 examination of meat, passed in 1900. 



Pure food, drug, and paint law, E. F. Ladd (North Dakota >Sta. Spec. Bui: 

 4, pp. 18). — The State pure-food law as amended and reenacted and the pure- 

 drug law and the paint law are given. 



Pure food, pure drug, formaldehyde, Paris green, and paint laws, E. F. 

 Ladd (North Dakota Sta. Spec. Bui. 3. pp. 22). — This gives the essential 

 features of each law with rulings and interpretations for the guidance of 

 interested parties. 



METEOROLOGY— WATER. 



Monthly Weather Beview (Mo. Weather Rev., 34 (1906), Nos. 5, pp. 201- 

 253, figs. 13. charts 15; 6, pp. 255-305, figs. 2',, charts 6).-— In addition to the 

 usual reports on forecasts, warnings, weather and crop conditions, meteoro- 

 logical tables and charts for the months of ]May and June, 1906. monthly review 

 of the progress of climatology throughout the world, recent papers bearing on 

 meteorology, recent additions to the Weather Bureau Library, etc., these 

 numbers contain the following articles and notes : 



No. 5.— Present Day Climates in Their Time Relation, by F. M. Ball (see 

 p. 312) ; Relations Between Velocities of Progression of Lows and the Areas 

 of Rising and Falling Pressure Accompanying Them (illus.), by S. Hanzlik ; 

 Glaisher's Factors and Ferrel's Psychrometric Formula (illus.), by C. F. Mar- 

 vin; Improvements in Seismographs with Mechanical Registration (illus.). 



