II CONTENTS. 



BOTANY. 



Page. 



The effect of sunshine on plants, N. Passerini 739 



Influence of X-rays on plants, H. Seckt 739 



Electrical phenomena in plants, A. Tompa 739 



Electric response in plants under mechanical stimulus, J. C. Bose 739 



Concerning the respiration of injured leaves, N. Dorofejew 739 



Influence of irritation on the growth of unicellular plants, J. Trzebinski 740 



The permeal:)ility of protoplasm, Van Rysselberghe 740 



Predisposition and innnunity in plants, 'H. Marshall Ward 740 



The origin of variegated varieties of plants, 1']. Laurent 740 



Experiments on cereal improvement at Olbersdorf, (4. Swoboda 741 



The germination of potato tubers, H. Vochting 741 



Aleurone grains in oilv seeds, B. Gram 741 



Enzyms of the tea leaf, H. H. Mann 741 



Ahnit, C. Schulze 742 



Energy of assimilation in fungi, T. Bokorny 742 



Resistance of molds to metallic poisons, C. Pulst 742 



The influence of a medium on the respiration of molds, S. Kostytschew 742 



A few common fleshy fungi of Ames, Iowa, Alice W. Hess 742 



New species of fungi from various localities, J. B. Ellis and E. Bartholomew. . 742 



A monstrosity of Boletus httcvx, C. Van Bambeke 742 



Report of the New York State l)otanist, C. H. Peck 743 



Report of the botanist, F. M. Bailey 743 



BACTERIOLOGY — FERMENTATION. 



Bacteriological investigations of Ames sewage disposal plant, L. H. Pammel. . 743 



Bacteriological studies at the Lawrence experiment station, S. De INI. Gage. . . 743 



The penetration of plant tissues by bacteria, G. Ellrodt 743 



Assimilation of free nitrogen by bacteria, M. W. Beijerinck and A. van Delden. 743 



On conditions of light production in luminous bacteria, R. E. B. McKenney. . 744 



The strawberry bacillus, W. Eichholz 744 



Review of existing methods for cultivating anrerobic bacteria, O. F. Hunziker. 744 



Physiology and morphology of alcoholic ferments, E. C. Hansen 744 



Growth and reproduction of yeasts, etc. , E. C. Hansen 744 



Influence of external factors on the assimilation of yeasts, T. Bokorny 745 



The Benikoji fungus, Y. Uyeda 745 



AIR — WATER — SOILS. 



On the question of hydrogen in the atmosphere, Lord Rayleigh 745 



On atmospheric hydrogen, A. Leduc 745 



Quantity of free hydrogen in air and density of atmospheric nitrogen, A. Gautier . 745 



Researches on the liiue color of the sky, G. Zettwuch 745 



The chemical and geological history of the atmosphere, J. Btevenson 745 



The climate and artesian waters of Australia, J. P. Thomjison 745 



Studies on the absorptive properties of decomitosed rocks, INI. Dittrich 746 



Geology and water resources of Snake River Plains of Idaho, I. C. Russell 746 



Studies on humus, T. Schloesing 748 



A contribution to the study of tropical soils, J. D. Kobus and T. Marr 748 



Banana soils of Jamaica, II, H. H. Cousins 748 



Greensand marl , A . L. Parsons 748 



Further contribution to the question. Can plant analysis sluiw the fertilizer 



requirements of soils? C. von Seelhorst, H. Behn, and J. Wilms 748 



Tubercle bacteria in relation to soils and fertilizers, Wohltmann and Bergenc. 749 



Bacteria of the soil in their relation to agriculture, F. D. Chester 749 



FERTILIZERS. 



Fertilizers 749 



Analyses and valuations of fertilizers, L. A. Voorhees and J. P. Street 749 



Analyses of commercial fertilizers, J. Hamilton and W. Frear 750 



Commercial fertilizers, H. J. Wheeler et al 750 



Analysis of commercial fertilizers 750 



Should manure be plowed under as soon as it is carried to the field? T. Remy. 750 



Comparative value of different phosphates, C. A. Mooers ". . 750 



Value of water-soluble phosphoric acid of double superphosphates, B. Schulze. 750 



