METEOROLOGY. 29 



Botanical examinations of peat samples (Tidsskr. norske Landbr., 4 (1897), pp. 

 114-118). 



The physiological importance of phosphoric acid in the organism of the sugar 

 beet, J. Stoklasa (Neue Ztschr. h'iihenz. Ind., 38 (1S97), No. 15, pp. 168-177). 



Study on chlorophyll, J. Stoklasa (Bui. Soc. Chim. Paris, 17-18 (1897), No. 10, 

 pp. 520-523). 



Recent investigations relating to root tubercles of leguminous plants, C. 

 Naudin (Jour. Agr. Prat., 61 (1897), I, No. 14, pp. 491-495).— A resume of the more 

 important recent literature. 



Concerning the grafting of Helianthus annuus and H. leetiflorus, L. Daniel 

 (Compt. Rend. Acad. Sci. Paris, 124 (1897), No. 16, pp. 866-869). 



Concerning agar-agar cultures of algas and amceba, N. Tischutkin (Centr. III. 

 llakt. a. Par., 2. Abt., 2 (1S97), No. 7-8, pp. 1S3-1SS). 



Concerning the nutrition of Cladochytrium pulposum, P. Vuillemin (Compt. 

 Rend. Acad. Sci. Paris, 124 (1897), No. 17, pp. 905-907). 



A new method for the study of the emission of liquids by plants, M. Coknu 

 (Compt. Rend. Acad. Sci. Paris, /.'/ (1S97), No. 13, pp. 666-669). 



The olegodynamic phenomena of plant and animal cells, O. Israel and T. 

 Klingmann (Arch. Path. Anat. u. Physiol., 147 (1S97), p. 2; abs.in Chem. Ztg.,21 

 (1891 ), No. 29, Repert., p. 81). 



The assimilatory energy of blue and violate rays of the spectrum, F. G. Kohl 

 (Her. dent. hot. Gesell., 15 (1897), p. Ill; abs. in Chem. Ztg., 21 (1897), No. 39, 

 Repot., p. 117). 



Cross fertilization, L. Coates (California Fruit Grower, .'0 (1897), No. IS, p. 6). — 

 A popular paper embodying the results of experiments previously reported. 



METEOROLOGY. 



Annual summary of meteorological observations in the United 

 States, 1896 ( U. 8. Dept. Agr., Weather Bureau, Monthly Weather 

 Review, 24 (1896), No. 13, pp. 487-496, charts 5).— This number of the 

 Keview is devoted to an anuual summary of observations on atmos- 

 pheric pressure, temperature, precipitation, wind movement, cloudi- 

 ness, and other meteorological phenomena "based upon data received 

 from about 3,000 stations occupied by regular and voluntary observers 

 of the Weather Bureau, Canadian data received by the cooperation of 

 Prof. Ii. F. Stupart, and Mexican data received by the cooperation of 

 Dr. M. Barcena, the director of the central meteorological observatory 

 of Mexico." The data are given in tables and charts and summarized 

 in the text. 



"The lowest annual averages within the United States were: Williston, 37.6; 

 Moorhead, 37.7; Bismarck, 38.9; Sault Ste. Marie, 39.5; Duluth, 39.6; Havre, 39.7. 

 For Canada: Prince Albert, 30.5; Battleford, 31.1; White Eiver, 31.2; Minnedosa, 

 31.6. The highest averages were: Key West, 76.4; Jupiter, 73.4 ; Yuma, 73.1 ; Tampa, 

 71.4; for Canada, Halifax, 43.2; Charlottetown, 43.1; Yarmouth, 43. 



"The mean annual temperature was above the normal at nearly all stations. The 

 largest departures were in the middle slope and the west Gulf States. The annual 

 temperatures were below normal in the Florida Peninsula and on the north Pacific 

 Coast and in portions of New Englaud. . . . 



"In general maximum temperatures exceeding 105 occurred as follows: Yuma, 117; 

 Phoenix, 115; Fresno, 111; Eed Bluff, 109 ; Fort Smith, 107 ; Shreveport and Wichita, 

 106. The absolute maximum for the whole country was 117 at Yuma. Minimum 



3612— No. 1 3 



