II CONTENTS. 



Page. 



Rate of combustion and pressure developed in a calorinietrie bonilj, Bene- 

 dict and Fletcher 309 



Proceedings of twenty-second convention of German experiment stations. _ 310 



tural Chemists. 1900, edited by H. W. Wiley 310 



Proceedings of tv\-enty-third convention of Association of Official Agricvil- 



Analyses for members during 1000, Ilendrick 310 



METEOROLOGY WATER. 



Studies on the thermodynamics of the atmosphere. Bigelow 310 



Meteorological chart of the Great Lakes, Henry and Conger 311 



Meteorological conditions at Orono, Maine, Stevens 311 



Meteorological division, Burke 311 



Annual precipitation in Oklahoma and Indian Territory. Slaughter 311 



Report on meteorological observations, 1906, Curtis 311 



The weather of 1900 in Switzerland, Billwiller 311 



The unreliability of weather foi'ecasts 311 



The end of weather shooting. Pernter 311 



Meteorology in its relation to horticulture, Curtis 312 



Report on the phenological observations for 1900, Mawley 312 



The psycho-physical aspect of climate, Pearse 312 



A contribution to the climatology of the Canary Islands, Burchard 312 



Climate of the wheat area of Central Canada 312 



The climate of Peru, Ilann 312 



The average duration of frosts on the earth, Dtn-scheid 312 



On the soot and smoke nuisance, Dennstedt and Ilassler 312 



Water resources of Georgia, B. M. and M. R. Hall 312 



Water resources of the Kennebec River basin. Barrows and Whipple 313 



Surface water supply of New England, 190(1, Barrows et al 313 



Occurrence and use of artesian and other underground water. Sellards 313 



Underground water in Sanpete and central Sevier valleys, Richardson 313 



The detection of pollution in underground waters, Thresh 314 



The purification of sewage by peat filters, Pottevin 314 



SOILS FERTILIZERS. 



The genesis of soils and principles of a soil classification, Kossovich 314 



Soil solutions, Zakharov 314 



Variability of the concentration of the soil solution, Gedroitz 315 



Investigations on weathering processes. Glinka 315 



Humus-carbonate soils, and transition into podzols (Bleisand), Lebedev 315 



Geological-agronomic charting of German flat lands, Wahnschaffe 315 



Soils from the Mattagami region of Canada, Henderson 315 



The story of the soil. Williams 315 



The maintenance of fertility, Thorne 315 



A soil fertility test, Crosthwait 31G 



A study of Rhode Island soil requirements by field tests. Adams 317 



Soil tests in wire baskets r. tests on farms. Ilartwell and Cook 317 



Soil biology in its relation to fertilization. Hills and .lones 318 



Feeding of plants by nitrogen-fixing bacteria of soil, Koch 318 



Soil inoculation by means of pure cultures, Vanderghem 319 



Action of micro-organisms in rendering potash of leucite available to 



higher plants. De Grazia and Camiola 319 



The lasting of green manure nitrogen on sandy soils, von Seelhorst 319 



Modern methods of fertilization of farm crops, Wein 320 



Fertilizers, May 320 



Fertilizer experiments on peat soils for 1(3 years, von Feilitzen 320 



Fertilizer experiments with nitrogen, Clausen 320 



Effect of ammoniacal and nitric nitrogen on corn, Soave 320 



Calcium cyanamid as a nitrogenous fertilizer. Miintz and Xottin 320 



Fertilizing rice with calcium cyanamid. ^Menozzi and Griiner 321 



Investigations on the action of lime niter, Stutzer 321 



Future of manufacture of nitrogenous fertilizers from air, Maizieres 321 



An agricultural problem 321 



