METEOROLOGY. 7l7 



10 cc. of a 0.4 per cent solution of Htliium carbonate; and heating for ten or 

 fifteen minutes; until tlie uric acid is dissolved. Then the vessel is filled up to 

 the mark. This solution keeps for a week. lie precipitates the uric acid as 

 anunonium urate. Otherwise the techni(pie is the same as Kiegler's." 



A source of error in the Clerget polarization, V. Stanek {Ztschr. Ziiekcr- 

 indus. Bohtiieit, ,iS (I'Jl.'i), ^'o. C. pp. ^S!i-..':t8; o&.s. in Chctti. Ztff., 3S (V.lUi), 

 iVo. Jft, Rcpcrt., p. 22i).— Ilerzfeld's figure. 132.GG, for the half-normal weight 

 at 20° C, is noted five minutes after filling to the mark. If, however, the solu- 

 tion is allowed to stand for from 10 to 35 minutes the constant obtained is 0.4 

 per cent higher, since the rotation, as Gubbe .showed in 1884, requires a certain 

 time to arrive at a maximum, and consequently a definite time must elapse 

 before the reading is taken. The author requests the International Conuuis- 

 sion. which is engaged in a .study of the constant, to pay particular attention 

 to this factor. 



The comparative value of various germicides for use in cane sugar fac- 

 tories. "W. L. Owen (Louisiana Stas. Bui. 153 (19J.5), pp. 5Jf). — These studies 

 were made with fresh and fermented juices, sirup, and deteriorated sugar. 

 Formaldehyde was found to be superior to calcium hypochlorite, ammonium 

 tluorid, sodium fluorid, milk of lime, bisulphite of lime, and bisulphite of soda 

 for disinfecting sirup tanks or in removing the micro-organisms causing de- 

 terioration in sugars. Milk or chlorid (hypochlorite) of lime may be substi- 

 tuted for formaldehyde for cleaning tanks at a reduction of cost per unit of 

 etficiency. 



" In cases where the efficiency of the germicide involves any great i^enetrating 

 power, as, for example, where gums are to be removed, chlorid of lime is a 

 more economical germicide than formaldehyde. Since the efficiency of all 

 germicides is greater at elevated temperatures, they should always be applied 

 hot in cleaning sugar factories. The comparatively high germicidal efficiency 

 of milk of lime, combined with its very low cost and the fact that it is always 

 on hand in sugar factories, renders it particularly suitable as a sugar factory 

 germicide." 



A bibliography is appended. 



METEOROLOGY. 



Temperature records, J. B. Thompson (Guam Sta. Rpt. 191.^, pp. 17, IS, 

 figs. 2). — Maximum and minimum monthly temperatures at the Guam Station 

 during the year ended June 30, 1914, are shown in tables and diagrams. 



Ohio weather for 1913, J. W. Smith and C. A. Patton (Ohio Sta. Bui. 277 

 {I'Jl'f). pp. 331-^06, figs. 5Jf). — The temperature and precipitation throughout 

 the State during each month are shown in charts. The usual summary tables 

 are given showing temperature and rainfall at Wooster and throughout the 

 State (18.88 to 1913). 



The mean temperature for the year at Wooster was 50,6° F. ; for the State, 

 52.3°. The highest temperature at the station was 9(5°, June 30 and August 17; 

 for the State, 105°. June 30. The lowest temperature at the station was —2°, 

 February G; for the State, —15°, February G. The annual rainfall at the sta- 

 tion was 51.18 in. ; for the State, 44.75 in. The number of rainy days at the 

 station was 134; for the State. 120. The prevailing direction of the wind was 

 southwest at the station and in the State at large. 



Meteorological summary for the year 1913 (Wi/oming Sta. Rpt. 191It, pp. 

 J66-no). — Monthly sununnries are given of observations at Laramie. Wyo.. 

 during 1913 on temperature, ju'essure, pre<'ipitation. hunndity. sunshine, cloudi- 

 ness, and wind movement. A record of soil temperature at depths of 3, 6, 12, 



