METEOROLOG Y — WATER. 



Page. 



Outlines of tropical climatology, G. M. Giles 939 



Monthly Weather Review, Vol. XXXIII, Nos. 12, 13 939 



Summary of meteorological observations, January to June, 1904, F. H. Loud. 940 



Number of hours of possible sunshine at Colorado Springs, F. H. Loud 940 



Meteorology for the year 1905, J. Derome 940 



Meteorological summary for 1905, H. Dufour and D. Valet 940 



Practical meteorological studies and comparative observations, G. Eiffel 940 



Meteorological observations, G. Ginestous 940 



Meteorological Chart of the Great Lakes, A. J. Henry and N. B. Conger 941 



Climate of the Pacific coast, A. McAdie 941 



The climate of Madison, Wis., J. L. Bartlett 941 



A first report on the relations between climates and crops, C. Abbe 942 



Weal her forecast, D. E. Hutchins 942 



The atmosphere, G. Bleuel 943 



Water. A. Hebebrand 943 



A method of determining the turbidity of water, J. F. Liverseege 943 



Wart ha method for determining hardness in water, H. Sichling 943 



Notes on investigations relating to rain water, H. M. Knipscheer 943 



Disappearance of water from the upper layers of the soil, W. Gbtz 943 



Influence of forests on underground waters, M. Ringelmann 943 



The drinking-water question 943 



The hygienic role of germs in water, F. Malmejac 943 



Present status of waste-water purification by biological methods, Thumm 943 



Effect of copper sulphate on bacteriological and chemical constituents of large 



bodies of water, W. R. Stokes and J. B. Thomas 944 



SOILS — FERTILIZERS. 



Renovation of worn-out soils, W. J. Spillman 944 



Present definitions of soil fertility, W. H. Jordan 944 



The analysis of soils, E. A. Mann 944 



Fertility studies on Wooster soil, A. EL Snyder and C. L. Cook 944 



Fertility studies on Strongsville soil, A. H. Snyder and C. L. Cook 945 



Rubber soils, H. N. Ridley 946 



"Soluble" phosphoric acid and its movements in soil, W. Hoffmeister 946 



The removal of soluble salts from soils, M. Ringelmann 947 



Progressive changes in soil moisture, W. Gotz 947 



Underground studies, C. Ochsenius 947 



Soil physics laboratory guide, W. H. Stevenson and I. 0. Schaub 947 



Economic geology of the United States, H. Ries 947 



Nitrification of nitrogenous matter in the soil, G. Masoni 947 



Nitrification of some organic fertilizers. Guillin 948 



Importance of nitrification for cultivated plants, W. Kriiger 948 



Influence of fertilizing and of plant growth on soil, W. Kruger 949 



Fixation of atmospheric nitrogen by plants, Trabut 949 



Utilization of atmospheric nitrogen by means of micro-organisms, R. Thiele.. 949 



Assimilation of free elementary nitrogen by micro-organisms, J. Vogel 950 



Nitrogen-fixing bacteria, T. W. Kirk 950 



Experiments with nodule-forming bacteria, F. C. Harrison and B. Barlow 950 



Tests of commercial cultures of nitrogen-fixing bacteria 950 



Fertilizing value of atmospheric nitrogen preparations, M. Hoffman. 951 



Some experiments with lime nitrogen on mineral and moor soi!s and investiga- 

 tions on decomposition of calcium cyanamid in various kinds of soil, H. von 



Fei htzen 951 



Barnyard manure, A. Vivien 951 



Litter and nitrogen, R. Hornberger 951 



Crude ammonia, Guerrapain 951 



Crude ammonia, A. Grau 952 



Analysis of nitrate of soda, R. Bensemann 952 



Acid versus basic phosphatic fertilizers, W. F. Sutherst 952 



Fertilizing action of certain accessory compounds in slags, Guffroy et al 952 



Comparative experiments with high and low percentage Thomas'slag 953 



Citric-acid soluble phosphoric acid in slag, M. de Molinari and O. Ligot 953 



