II CONTENTS. 



rage. 

 Investigationfi on the formation of proteids Ijv plants in <larknes.«, Marie 



Maliniak 910 



The occurrence of calcium oxalate and lignin during the differentiation of the 



buds of Frunus americana, H. L. Bolley and L. K. Waldron 910 



On the poisonous properties of some alkaline compounds toward higher plants, 



H. Coupin 911 



FERMENTATION BACTEKIOLOGY. 



The bacterial air flora of the semidesert region of New Mexico, J. Weinzirl 913 



The influence of the temperature of liquefied air on bacteria, A. Macfadyen 



and S. Rowland 913 



Effect of different degrees of light on the multiplication of water bacteria, F. 



T. Bioletti 914 



Fermentation of galactose, F. Dienert 915 



METEOROLOGY CLIMATOLOGY. 



West Indian hurricanes, E. B. Garriott 920 



The fiftli annual report for the year 1899 of the agricultural experiment station 



ofPloty 916 



Work at the station of agricultural climatology of Juvis}- during the year 1899, 



' C. Flammarion 918 



Meteorological observations, A. ( ). Leuschner and Y. Kuno 921 



Meteorological observations, J. E. Ostrander and C. L. Rice 918 



Meteorological record for 1899 921 



Meteorological summary for 1899, C. A. Patton 919 



Report of the meteorologist, N. Helme 919 



AIR— WATER — SOILS. 



Waters, E. W. Hilgard et al 926 



Soils, lands, and soil moisture, E. W. Hilgard and R. H. Loughridge 921 



Alkali and alkali soils, R. H. Loughridge 923 



Preliminary account of the soil survey work in North Carolina, B. W. Kilgore. 924 



The Illinois glacial lobe, F. Leverett 924 



The soil zones of European Russia in connection with the salt content of the 



subsoils and with the character of the forest vegetation, G. Vissotski 925 



Acidity of upland soils, H. J. Wheeler and B. L. Hartwell 927 



Laterites, P. A. Zemyachenski 926 



FERTILIZERS. 



The manurial value of the excreta of milch cows, W. S. Sweetser 927 



Denitrification of nitrate of potash under the influence of reducing substances, 



M. Knovalov 928 



Fertilizer experiments with different sources of phosplioric acid, H. J. Patterson . 930 



Commercial fertilizers, E. H. Jenkins, S. W. Johnson, et al 931 



Analyses of fertilizers, C. A. Goessmann 933 



Fertilizer analyses, R. C. Kedzie 933 



Commercial fertilizers, H. J. Wheeler, B. L. Hartwell, et al 933 



FIELD CROPS. 



A fertilizer experiment with barley, R. Ulrich 934 



Some varieties of winter barley, R. J. Mansholt 935 



Chicory growing, M. G. Kains 941 



