II CONTENTS. 



I'asre. 

 Tlio iiilluence of mineral salts ou the form and structure of plants, C. Dasson- 



ville 1008 



Concerning the nitrogen nutrition of plants, L. Richter 1011 



On the assimilation of nitric nitrogen and ammoniacal nitrogen by higher 



plants, Maze" 101 1 



Experiments on the effect of Nitragin and inoculation material upon lupines, 



W. Edler 1012 



Influence of bacterial soil on plant growth, E. Gain 1012 



FERMENTATION — BACTERIOLOGY. 



Potato as a culture medium, with some notes on a synthesized substitute, E. F. 

 Smith 1014 



Which forms of carbohydrates are required by denitrifying organisms for their 

 vital processes? J. Stoklasa 1014 



A report on bacteriological investigations of the fermentation of tobacco, J. H. 



Verhout 1014 



Experiments with wine ferments in France 1015 



On the presence iu germinating barley of a ferment capable of dissolving pec- 

 tin, E. Bonrquelot and H. Herissey 1015 



Concerning some of the less known important functions of micro-organisms, 



C. Wehmer 1015 



METEOROLOGY — CLIMATOLOGY. 



Monthly Weather Review, Vol. XXVI, Nos. 10-12 1017 



Instructions for voluntary observers, W. L. Moore 1020 



Meteorology of 1897, L. G. Carpenter et al ,. . . 1018 



Meteorological record for 1897, New York State Station 1020 



Meteorological summary for Ohio, 1897, C. A. Patton 1019 



Report of the meteorologist, A. M. Hildebrandt 1020 



Relation of meteorology to forestry in Michigan, R. C. Kedzie 1020 



Evaporation, L. G. Carpenter et al 1019 



AIR — WATER — SOILS. 



Investigations concerning the influence of the mechanical working of the soil 



on its fertility, E. Wollny 1020 



Report on fertilization, W. Maxwell 1021 



Investigations in moor culture, II. I m mendor If 1022 



Action of lime and calcium carbonate on certain natural humus substances, G. 



Andre" 1022 



Contribution to the solution of the question whether the water content of the 



soil influences the nitrogen and ash content of the dry matter of plants, J. 



Wilms and C. von Seelhorst 1023 



The forms of phosphoric acid in moor soils, G. Nannes 1024 



On the direct transformation of ammonia into nitric acid in liquid media, E. 



Demoussy 1024 



Alkali studies, II, E. E. Slosson and 13. C. Buffum 1025 



The alkali of the Yellowstone Valley, M. Whitney and T. H. Means 1026 



Soil temperatures, L. G. Carpenter et al 1030 



Soil temperatures, New York State Station 1031 



FERTILIZERS. 



Analyses and valuations of fertilizers, L. A. Yoorkees and J. P. Street 1031 



Report of analyses of commercial fertilizers for. the fall of 1898, L. L. Van 



Slyke 1033 



