II CONTENTS. 



METEOROLOGY — WATER. 



Page. 



The Weather Bureau and the homeseeker, E. L. Wells 115 



Meteorological observations, W. T. Ellis et al 115 



Weather report, 1904, at Ontario Agricultural College, J. B. Reynolds 115 



Colorado College observatory, meteorological summary for 1904 115 



Meteorological observations,' 1903-4, J. G. Haney and O. H. Elling ] 15 



Meteorological observations, J. E. Ostrander et al 115 



The weather during the agricultural year, 1903-4, F. J. Brodie 115 



Rainfall in southern Rhodesia 115 



Meteorological observations of Montdidier, H. Duchaussoy - 115 



Organization and conducting of meteorological observations, F. W. Toussaint. 116 



Islands for weather forecasting purposes, W. J. 8. Lockyer 116 



Regime of rainfall and of rain-bearing winds, M. Chassant 116 



Duration of sunshine at Aas Agricultural College, 1897-1903, J. Sebelien 116 



Distribution of photochemkally active light, J. Sebelien 117 



Photochemical studies of the ultraviolet part of sunlight, J. Sebelien 117 



Importance of land drainage for prevention of frost, A. G. Hogbom 118 



Well waters from farm homesteads, F. T. Shutt 118 



Ground water, M. Ringelmann 118 



The natural hardness of water, E. Basch 118 



Purification and sterilization of waters by means of calcium peroxid 118 



Changes in bacterial content of water, B. G. Philbrick 118 



Presence and distribution of nitrogen-fixing bacteria in the sea, Keutner 118 



SOILS — FERTILIZERS. 



Swamp soils, R. Harcourt 118 



Abitibi soils, R. Harcourt 118 



Soil investigations, F. T. Shutt 118 



The architecture of the soil of France, O. Barre 118 



Study of Belgian soils 119 



Composition of the moor soils of Jonkoping County, R. Tolf 119 



Apple orchard survev of Wayne County, N. Y. II, Geology, W. E. McCourt. . 119 



The control of soil moisture/ F. T. Shutt and W. S. Blair. ." 119 



Absorption of water by clay, J. M. van Bemmelen 119 



Use of coloring matters in soil investigations, B. Sjollema 119 



Isolation of colloidal substances in soils, B. Sjollema 119 



Field trials of Swedish Moor Culture Association, 1904, H. von Feilitzen 119 



Some questions relating to soil culture, A. Arnstadt 119 



Action of ammoniacal salts on nitrification, E. Boullanger and L. Massol 119 



Nitrification, L. Grandeau ~ 120 



Nitrifying organisms, L. Grandeau 120 



Nitrification in the soil. — The nitrous organism, L. Grandeau 120 



Nitrogen-fixing bacteria, H. Fischer 120 



The bacterial flora of the soil, L. Grandeau 120 



Bacterial content of moor soils, O. Fabricius and H. von Feilitzen 120 



Methods of bacteriological investigation of soils, II, F. Lohnis 120 



Assimilation of atmospheric nitrogen by a peat mold, Charlotte Ternetz 120 



Mutual action of plant food compounds in the soil, P. Kossovich ' 120 



Different degrees of availability of plant nutrients, O. Loew and K. Aso 121 



Determination of productiveness and food requirements of soils, J. Konig 121 



Composts and composting, B. W. Kilgore et al 122 



Fertilizers and amendments, F. T. Shutt 122 



Analyses of cotton-seed meals 122 



Analysis of commercial fertilizers 1 122 



The utilization of ammonia nitrogen, A. Schafer 122 



Use of peat for transformation of calcium cyanamid, R. Perotti 122 



Nitrate of soda as a means of protection against frost 122 



Value of potash to farm crops, J. J. Willis 122 



Availability of phosphoric acid in bone dust, T. Katayama 122 



AGRICULTURAL BOTANY. 



Relation of plant physiology to development of agriculture, A. F. Woods 123 



Regarding the cause of sap pressure and flow in the maple, K. M. Wiegand . . 123 



Further studies on the starch grain, H. Kraemer 123 



Further observations on the nature of color in plants, H. Kraemer 123 



