.II CONTENTS. 



Page. 



Deteniiination of volatile fatty acids iu butters, De Kouiugli 112- 



lodiu number of olive oil and variations in Tunitian oils, Marcille 113 



Glycerin in wine, Lojodice 113 



Agricultural laws, Ladd 113 



Food and drug laws, Ladd 113 



A milk colorimeter, Bernstein 113 



Apparatus for determination of water and fat in butter, Shutt 113 



M KTEOROLOG Y W ATKR. 



The importance of weather forecasting for farmers. Kruger 113 



Meteorology in the service of agriculture, Hudig 113 



Variations of meteorological elements of soil, Baldit 113 



Results of meteorological observations in Brunswick, 1878-19G5, Dorr 113 



Meteorological observations, German East Africa, Lommel 113 



Meteorological observations in German East Africa. Ileidke 11-1 



Rainfall observations in German East Africa, Uhlig 11-1 



The Innsbruck good weather wind, Defant 114 



Official experiments on hail protection in Italy, Yidal 114 



A rain gage for agricultural purpnses, Grohmann 114 



The psycho-physical aspect of climate, Tyler ^ 114 



Denudation and rainfall, Kassner 114 



Rainfall in department of Puy-de-Dome, Plumandon 114 



Change in climate of Kansas, Snow 114 



The climatology of Kansas, Jennings 115 



Climate of different parts of the world. Bui.isman 115 



Productive capacity of plants and climate conditions, Detmer 115 



Influence of spring preci]iitation on the yield, Alexandrov .' 115 



Relation of diffusion of heat rays to season of year, Defant 115 



Ground water in Hamburg, Yollor 115 



Geology and underground water i-esources of northern Louisiana, Veatch_ 115 



Underground waters of Missouri, their geology and utilization. Shepard__ 115 



Ground and deep waters of North Carolina. McCarthy 115 



Water supply of Nome region. Alaska, inOG. Hoyt and Ilenshaw 115 



The quality of surface waters in Minnesota, Dole and Wesbrook 115 



Pollution of Illinois and Mississippi rivers by Chicago sewage, Leighton„^ IIG 



The problem of potalile water, Martel 1 11(3 



Water supply and sewage disposal in France 11(5 



Sewage irrigation at Paris 116 



SOILS FEKTILIZEKS. 



The influence of soil on vegetation, Fricklhnger 116 



Some factors influencing soil fertility, Schreiner and Keed 117 



Soil improvement for hill laml^ of Illinois. Hopkins and Keadhimer 117 



Improvement of upland timber soils of Illinois, Hopkins and Readhimer__ 118 



Action of acpieous solutions upon soil i)hosphates, Cameron and Bell 118 



Action of straw manure on fertility of soils, Hiltner and Peters 119 



Recent progress in investigations on nitrification, Ehrenberg 119 



On changes of availability of nitrogen in soils, Loew and Aso 119 



The activity of bacteria in soils, Broml)erg 120 



Further experiments on nitrogen-fixing bacteria, Keding 120 



Use of nitrobacteria in Mexican agriculture, Macias 120 



The inoculation question in soil bacteriologj-, Ehrenberg 120 



Fertilizers, Ferris 120 



Every farmer his own experimenter. Buchanan and Willis 121 



Influence of different methods of applying fertilizers, Holdefleiss 121 



[Studies of changes in nitrogen when added to soils]. Withers 122 



Interaction of ammonium salts and the soil. Hall and Gimingham 122 



Can calcium carbonate cause loss of ammonia from soil? Takeuchi 123 



Cause of lower efficiency of ammoniacal v. nitric nitrogen 123 



The prospects for natural and artificial nitrogenous compounds, R6rdam__ 123 



Nitrate of soda propaganda 123 



Lime nitrogen as a substitute for nitrate of soda, Frank 124 



On lime nitrogen, I, Bredig et al , , — 124 



