II CONTENTS. 



Page. 



The resumption of root growth in the spring, E. S. Goff 17 



Investigations on the root growth of plants, Miiller-Thurgau 18 



Investigation of flower buds, E. S. Goff IS 



The formation of nitrogenous eom])Ounds in plants, A. Emmerling 19 



Albuminous substances and their transformations, D. N. Prianishnikov 19 



Gaseous exchange between plants and the atmosphere, T. Schloesing, jr 20 



The action of dry and humid air on plants, Eberhardt .' 20 



Closed-circuit respiration apparatus, S. M. Babcock and H. L. Russell 21 



A preliminary list of the Spermaphyta, H. L. Bolley and L. R. Waldron 21 



Some Cercosporpe of Macon County, Alabama, G. W. Carver 21 



Origin of the cultivated plants of Argentina, G. Lemee 21 



The improvement of agricultural cultivated plants, C. Fruhwirth 21 



Infestation by mice and means for destroying them, G. del Guercio 21 



Combating mice by means of Loffler's bacillus, K. Kornauth 22 



The feathered denizens of the orchard, 0. Widinann 22 



The insectivorous birds of Western Australia, R. Hall 22 



The food of the variegated crow ( Corrus comix), G. Staes 22 



METEOROLOGY. 



The eclipse cyclone and the diurnal cyclones, H. H. Clayton 22 



West Indian hurricanes, etc 23 



On the theory of precipitation on mountains, F. Pockels 23 



Report on radiation, St. Petersburg, 1899, J. A^iolle 23 



Prevention of hailstorms by cannon, J. C. Covert 23 



Frost protection 23 



Meteorological and experimental observations on beets, M. Hoffmann 23 



Phenological observations, Canada, 1899, A. H. MacKay 23 



Annual summary of meteorol<)gical oliservations in the United States, 1900 ... 23 



Meteorological observations, 3Iassachusetts, J. E. Ostrander and C. L. Rice 23 



Meteorological observations at the Michigan Agricultural College, 1899 23 



Meteorological charts of the (ireat Lakes 24 



Meteorological observations in Hertfordshire, 1899, J. Hopkinson 24 



Report on the rainfall in Hertfordshire in the year 1899, J. Hopkinson 24 



Meteorological observations at Naples, 1898-99, G. Di Paola 24 



Meteorological observations at Haro, Spain, 1900 24 



Meteorological reports for 1898 and 1899, Dodd's Botanical Station 24 



Psychrometric tables for obtaining pressure, humidity, etc., C. F. Marvin 24 



Weather forecasts in Australia 24 



WATEH SOILS. 



Soluble salts of cultivated soils, F. H. King and A. R. Whitson 24 



Influence of potash on black marsh soils, F. H. King and A. R. Whitson 27 



Absorption of monocalcium phosphate by arable soil and by humus, J. Dumont. 28 



The chemical composition of Maryland soils, F. P. Veitch 28 



A chemical study of wheat soils of Rothamsted, B. Dyer 30 



Valuation of arable soils on a scientific statistical basis, G. Thorns 31 



Waters for table use sold in bottles or jugs, H. E. Smith 31 



FERTILIZERS. 



Swamp muck, H. A. Huston and A. H. Bryan 31 



Marls, H. A. Huston, W. J. Jones, and A. H. Bryan 32 



Action of sulphate of ammonia on succeeding crops, E. Kloepfer 32 



Field experiments with fertilizers, Baessler 32 



On fertilizer experiments, Behrens 32 



Fertilizers for Tennessee, C A. Mooers 32 



Analyses of commercial fertilizers, Louisiana, W. C. Stubbs 32 



Analyses of commercial fertilizers, 1899, F. W. Woll and A. Vivian 32 



Perchlorate in nitrate of soda, T. Wetzke 32 



The world's production and consumption of potash fertilizers, L. Grandeau . . 33 



