II CONTENTS. 



Pago. 



The detection of coconut oil in butter and lard, Fendler 212 



Color reaction of oleic acid, Manea 212 



Official method of American Leather Chemists' Association for tannin analysis. 212 



Ethereal oils, Haensel 212 



Essential oils 212 



Animal fats and oils, Bentley 212 



Report of the chemical division, Ilartwell. 212 



Labor and time saving apparatus in American analytical laboratories, Samter. 212 



Chemical problems in the province of bacteriology, Reitz 213 



METEOROLOGY — WATER. 



Meteorology, Edmiston 213 



Climatology of Oklahoma. 213 



Report of meteorologist, Helme 213 



Meteorology - 213 



Meteorological observations in Moscow in 1907, Leyst 213 



Vertical temperature-gradients of the atmosphere, Humphreys 214 



On the mechanical energy of precipitation, Reisner 214 



The influence of forests on rainfall and on agriculture in Mauritius, Walter 214 



The effect of forests on rainfall 214 



Cause and effect of the gradual disappearance of forests 214 



Deforestation and tillage with reference to Michigan streams, Horton 214 



Water purification and similar processes, Askenasy 215 



Principles of sewage treatment, Dunbar, trans, by Calvert 215 



Sewage purification abroad, Clark 215 



High nitrification of sewage effluents, Scott-Moncrieff 215 



Report on the sewage irrigation farm of Gennevilliers 216 



Agricultural utilization of sewage 216 



SOILS — FERTILIZERS. 



Maintenance of soil fertility: Plans and summary tables 216 



Soil fertility as affected by long use of fertilizers, Brown and Skinner 217 



A study of adjoining fields which gave widely varying yields, Brown 217 



Physical and chemical study of the Milton Grove soils, Frear 217 



Wisconsin soil resources and need of a soil survey, Weidman and Whitson. ... 217 



A preliminary report on the phosphates of Wisconsin soils, Whitson ; 218 



The conservation of phosphates on Wisconsin farms, Whitson and Stoddart 218 



Soil survey work in South Carolina 218 



Soils 218 



The genesis of loess a problem in plant ecology, Shimek 218 



The influence of geology on horticulture, Hooper 219 



BibliogT-aphy of North American geology for 1906 and 1907, Weeks and Nickles. . 219 



The waste from soil erosion in the South, Ashe 219 



The conservation of soil moisture, MacDonald 219 



The water requirements of crops with reference to tro])ical conditions, Vageler. . 219 



The chemistry of heated and of partially sterilized soils, Pickering 219 



Comparative soil temperature study of two plats differently treated, Brown.. 219' 



Investigations on the action of sulphurous acid on soils, Haselhoff 219 



Contribution to the knowledge of humus compounds, Miklauz 220 



The catalase of soils, May and Gile 220 



Increasing the soil's nitrogen content 220 



Inoculation with nodule-forming bacteria, Sayer 220 



General fertilizer experiments. Hunt 220 



Action of fertilizers on woody plants, Chancerel 220 



Experiments on the action of lime nitrogen, Gerlach 221 



Effect of lime nitrogen containing calcium carbid on growth, von Feilitzen . . 221 



Acetylene gas refuse as a manure 221 



The actual state of production of synthetic nitrogenous fertilizers, Ragondet.. 221 



The utilization of atmospheric nitrogen, Emich 221 



Employing the atmosphere in the service of agriculture, Riecke 221 



The industrial manufacture of calcium cyanamid, Marchand 221 



Nitric acid and other spark reactions, Askenasy 221 



Nitrogen compounds of carbid, Askenasy 221 



The present state of the production of nitrate in Norway, Do la Vallee-Poussin. . 221 



The consumption of nitrate of soda in the United States, Munroe 222 



