122 EXPERIMENT STATION RECORD. 



The weather and its influence on man and the productions cf the earth, J. W. 

 Smith ( Agr. of Massachusetts, 1S96, pp. 42-51, map 1). — Discusses this subject in a 

 popular manner, especial attention being given to the relation of climate to crops 



Agricultural weather forecasts, F. T. Bkodie (Jonr. Boy. Jgl. Soc. England, 

 3. sn\, 8 (1S97), No. 2, pp. 228-233). 



Weather, 0. J. KlOTZ (Ottawa Nat., 11 (1897), No. 2, pp. 45-52). 



Recent studies on tempest and tornadoes, If. Fa ye (Compt. Rend. Acad. Sri. 

 Paris, 124 (1897), No. 21, pp. 1133, 1134). 



Effects of a hailstorm, A. FOREL (Compt. Bend. Acad. Sri. Paris, 124 (1S97), No. 

 26, pp. 1549, 1550). 



Periodic variation of rainfall in India (Smithsonian Misc. Coll. No. 1077; abs. in 

 Nature, 56 (1S97), No. 1440, pp. 110-115). 



The meteorology of 1894 (Trans. Highland and Jgl. Soc. Scotland, 5. ser., 7 (1895), 

 pp. 397-404). — Monthly data of observations on wind, temperature, rainfall, and 

 sunshine are reported for the year 1894 and compared with the averages of previous 

 years. 



The wind as a motive force in agriculture, F. Hot daiu.e (Prog. Agr. ct 77/., 

 27 (1S97), No. 13, pp. 380-384). 



FERTILIZERS. 



Report of analyses of commercial fertilizers for the fall of 1896, 



L. L. Van Slyke {New York .State Sta. Bui. 116, pp. 75-131).— Analyses 

 of 261 brands of commercial fertilizers, representing' 32G samples, are 

 reported, accompanied by explanatory notes. 



"Of these different brands, 171 were complete fertilizers; of the others, 3:"> con- 

 tained phosphoric acid and potash without nitrogen; 17 contained nitrogen and 

 phosphoric acid without potash; 26 contained phosphoric acid alone; 5 potash salts 

 only, and 4 nitrogen compounds alone. 



"The 174 brands of complete fertilizers contained nitrogen varying in amount 

 from 0.51 to 6.30 per cent and averaging 1.82 per cent. The average amount of nitro- 

 gen found by the station analysis exceeded the average amount guaranteed by 0.11 

 per cent, the average guaranteed being 1.71 per cent and the average found being 

 1.82 per cent. In 121 brands of complete fertilizers the amount of nitrogen found 

 was equal to or above the amount guaranteed, the excess varying from 0.01 to 2.11 

 per cent and averaging 0.26 per cent. In Til) brands the nitrogen was helow the 

 guaranteed amount, the deficiency varying from 0.01 to 1.98 per cent and averaging 

 0.14 per cent. In 3!) cases the deficiency was less than 0.25 per cent; in S cases less 

 than 0.50 and over 0.25 per cent; in 1 case it was over 0.50 and below 1 per cent, 

 and in 2 cases it was over 1 and below 2 per cent. 



"The 174 brands of complete fertilizers contained available phosphoric acid vary- 

 ing in amount from 3.22 to 15.70 per cent and averaging 8.54 per cent. The average 

 amount of available phosphoric acid found by the station analysis exceeded the 

 average amount guaranteed by 0.72 per cent, the average guaranteed being 7.82 per 

 cent and the average found being 8.54 per cent. In 120 brands of complete ferti- 

 lizers the amount of available phosphoric acid found was above the amount guaran- 

 teed, the excess varying from 0.02 to 4.33 percent and averaging 1 per cent. In 52 

 brands the available phosphoric acid w as below t lie guaranteed amount, the deficiency 

 varying from 0.01 to 2.10 per cent and averaging 0.46 per cent. In 25 of these cases 

 the deficiency was below 0.25 per cent; in 10 cases it was above 0.25 and below 0.50 

 per cent; in 12 cases it was above 0.50 and below 1 per cent; in I cases it was above 

 1 aud below 2 per cent; in 1 case it was above 2 and below 3 per cent. 



"The complete fertilizers contained potash varying in amount from 0.30 to 14.65 

 per cent and averaging 4.16 percent. The average amount of potash found by the 

 station analysis exceeded the average amount guaranteed by 0.18 per cent, the aver- 





