II CONTENTS. 



Page. 



Determining aldehydes with the spectroscope, Brnylants 211 



On a modification of the Schultze-Tieniann apparatus, Jacque 211 



General application of C'hristonianos carbon dioxid apparatus, Christomanos.. 211 



Report of the chemical division. Rose 211 



METEOROLOGY — WATER. 



A search for fluctuations in the sun'a thermal radiation, Newcomb 211 



Anticyclones as aids to long-distance forecasts, Rawson 212 



Bulletin of the Mount Weather Observatory 212 



The weat her of Scotland in 1907, Watt 212 



JNJeteorology, Bonarae 212 



Meteorological report for the year ended March 31, 1907 213 



Map-studies of rainfall. Mill 213 



Hygienic water supplies for farms, Bolton 213 



SOILS — FERTILIZERS. 



Relations between climate and terrestrial deposits, Barrell 213 



The fertility of some colonial soils, Juritz 214 



The loss of water from soil during dry weather. Leather 214 



The upland moor as a water distributor, Gangnus and Rosenstand- Woldike. . 214 



Report on irrigation dry farming and soil moisture investigations, Nelson 214 



Humus in Kew Hampshire soils, Morse 215 



Soil deterioration and soil humus. Hills, Jones, and Cutler 215 



What the chemist has found in Pennsylvania soils, Frear 216 



On soils derived from carboniferous limestone, Gregoire 216 



Where crop yields are curtailed by lack of phosphoric acid and lime, Agee. . . 216 



The composition of buntersandstein soils, Hornberger 216 



Some representative soils. Ingle 216 



Analyses of grain soils [of Cape of Good Hope] , Juritz 216 



The development of the modern plow in relation to soil fertility, Hugues 217 



Natural agencies in soil improvement, Voorhees 217 



The productiveness of the soil: Bacteriological factors, Marchal 217 



The problem of soil bacteriology, Fischer 217 



Microbiochemical processes of ammonization in cultivated soils, Perotti 217 



Influence of organic matter on nitrification, Karpinski and Niklewski 218 



On the production of carbon dioxid in cultivated soil, Marr 218 



The action of carbon bisuli^hid and similar substances on the soil, Stormer. . . 218 



A denitrification experiment, Fischer 218 



The reduction of nitrates, Laurent 218 



Note on dialysis of soils, Garola 218 



The analysis of the soil by cultivated plants, Proost 219 



A simple method of testing the manurial wants of soils 219 



Testing soils for fertilizer needs, Taylor 219 



The results of practical fertilizer experiments, Wagner 219 



Increase and decrease of nitrogen in the soil by manuring 219 



The sources of nitrogen and nitrogen fertilizing, Schneidewind 220 



The content of combined nitrogen in the air, Vageler 220 



The nitrogen problem in agriculture 220 



Field experiments with different nitrogenous fertilizers, Kleberger 220 



Norwegian and Chilean nitrate, von Feilitzen and Grandeau 220 



Calcium cyanamid as a fertilizer, Immendorff and Kempski 220 



Experiments with calcium cyanamid, De Polo 221 



Calcium nitrate and calcium cyanamid, Grandeau 221 



A danger in the use of nitrogenous fertilizers, Cavazza and Zerbini 221 



On the potash fertilizing of tropical and subtropical plants, Vageler 221 



Potash fertilizers, Cavazza 221 



Farming light soils with special reference to use of potash salts, Kitzinger 221 



Action of soil bacteria on phosphates, Sackett et al 221 



Action of soil bacteria on phosphates, Sackett et al 222 



On the action of agricultural i ihosphate, Bottcher 222 



Fertilizer experiments with Thomas slag, Jozek 222 



Results of cooperative experiments with fertilizers in swamp soils, Harcourt. . 222 



The action of lime on the bacterial life in soils, Vogel 222 



Action of manganese and a manganiferous mineral as a fertilizer, Strampelli.. 223 



The use and increasing production of suli)hate of ammonia, CoUot 223 



The utilization of the nitrogen of the air in Germany, Kempski 223 



