METEOEOLOGY — WATER. 15 



ery and equipment, and control of operation; estimated costs of a potato distil- 

 lery plant, cost of operation, and value of output ; government regulations ; de- 

 tails of operating a potato distillery, including the preparation and fermenting 

 of the mash, determining of the specific gravity and acidity of the fermented 

 mash, distilling and denaturing the alcohol, and the yield of alcohol ; malt, its 

 diastatic power, preparation of green barley malt, steeping the grain, sprouting 

 the grain, crushing the green malt, value of green malt from various gl-ains, 

 and relative value of green and dried malt; yeast, including its development, 

 spontaneous and pure-culture yeasts, development of a start yeast, preparation 

 of a spontaneous hop yeast, yeast mashes, and preparation of grain and potato 

 yeast mashes : analytical data, with reference to the composition of the whole 

 potatoes, their purchase on the basis of starch content, a simple method of 

 determining starch, analysis of potato skins, and the composition of the potato 

 slop. Data pertaining to the slop feeding of animals are abstracted on page 71 

 of this issue. 



Sulphate scale in evaporators, S. S. Peck {Haioaiian Sugar Planters' Sta., 

 Div. Agr. and Chem. Bui. 3S, pp. SO, charts 2). — This is a continuation of the 

 work previously reported (E, S. R., 19, p. 981), and from which it is con- 

 cluded that " the use of sodium carbonate in addition to lime in clarifying juices 

 decreases the amount of insoluble ash in the filtered .juice ; decreases the amount 

 of phosphoric acid in the same; decreases the amount of lime in the same; 

 increases the amount of mineral matter removed by filtration, or the equivalent 

 of the work of the filter presses in factory operations; in juices of high sul- 

 phuric acid content, not enough lime will be left to form a serious lime sulphate 

 scale; effects a partial removal of magnesia from the juice; effects a slight 

 increase in organic impurities removed from the juice; improves the working 

 of after products by removal of calcic salts; on account of the cost of the 

 material, the expense of clarification will be materially increased." 



Text-book of starch manufacture, E. Parow (LehrMch der Stdrkefabrika- 

 tion. Berlin, 1908, vol. 1, pp. XXII+SIO, figs. 73).— This work confines itself 

 chiefly to potato-starch manufacture and the examination of the resulting 

 products. Its chapters are as follows: Potato-starch manufacture, the appa- 

 ratus and reagents employed for the technical control of the industry, the 

 methods for examining the raw material, the resulting products and other sub- 

 stances, and the characteristics of the starches. The method of examining 

 cereal starches is also considered. 



Subject and author index to Hoppe-Seyler's Zeitschrift fiir Physiologische 

 Chemie, K. Thomas (Hoppe-Seyler's Zeitschrift fiir Pliysiologische Cheniic. 

 Sachund Autorenregister zu Band XXXI-LX. Strasshurg, 1910, pp. Ji69).— 

 This is a combined subject and author index from volume 31 to volume 60, 

 inclusive. 



METEOROLOGY— WATER. 



The principles of meteorology, A. V. Klossovskii (Osnovy Meteorologii. 

 Odessa. 1910, pp. 525, figs. 199; rev. in Zhur. Opuitn. Agron. (Russ. Jour. Expt. 

 Landiv.), 11 {1910), No. 1, pp. 151-153).— This text-book consists of three parts, 

 (1) satistical meteorology, (2) dynamical meterology and meteorological optics, 

 and (3) the earth's magnetism, electrometeorology, and methods of present 

 meteorology. 



Weather, water, and air, M. Hoffmann (Jahresber. Landw., 2// {190J), pp. 

 i_7). —Recent investigations on this subject are classified and reviewed. 



The relation of the weather to cultural and fertilizer experiments, and 

 plant culture in general, Gbohmann (Mitt. Deut. Landw. Qesell., 2o (1910), 

 No. 28, pp. 427-433).— The number of hours of sunshine and the total annual 



