II CONTENTS. 



FERMENTATION HACTEKIOLOGY. 



Page. 



Studies in systematic bacteriology, F. 1). Chester 721 



Descriptions of certain species of bacteria isolated from cultivated soil, F. D. 



Chester 721 



Tobacco bacteria, C. J. Koning 720 



Formation and structure of bacterial spores, Miihlschegel 721 



>rETEOKOLOGY. 



Atmospheric radiation, F. "W. Very 723 



On solar changes of temperature and variations in rainfall in the region sur- 



romiding the Indian Ocean, N. and W. J. 8. Lockyer 724 



Eeport of the meteorologist, W. H. Bishop 724 



Report of the meteorologist, N. Helme 724 



WATER — SOILS. 



Third report of work in the study of the fertility of soils, S. Bogdanov 725 



The amount of humus in soils and the percentage of nitrogen in the humus as 



affected by applications of air-slaked lime and certain other substances, 



H. J. "Wheeler, C. L. Sargent, and B. L. Hartwell 727 



The causes and the importance of the decomposition of nitrates in soils, 



W. Kriiger and W. Schneidewind 728 



Furtlier observations upon the need of lime in Rhode Island soils, H. J. 



"Wheeler and G. E. Adams 732 



The chemical functions of certain soil bacteria, F. D. Chester 729 



FERTILIZERS. 



On the question of the j^reservation of manure and urine, J. Konig 733 



The method of making manure-preservation experiments, T. Pfeiffer, F. Mos- 



zeik, and O. Lemmermann 733 



Denitrification and the action of barnyard manure, T. Pfeiffer and O. Lemmer- 

 mann 734 



The fifth year's observations upon the effectiveness of nitrate of potash, as 

 I compared with like amounts of nitrogen and potash in form of muriate of 

 ' potash an<l nitrate of soda, H. J. "Wheeler and J. A. Tillinghast 735 



Observations upon the growth of plants on an acid upland soil, limed and 



unlimed, H.J. Wheeler and J. A. Tillinghast 735 



On the application of lime upon a sour soil before and after seeding to grass, 

 H. J. "Wheeler and J. A. Tillinghast 737 



Analyses of commercial fertilizers, H. J. Wheeler, B. L. Hartwell, et al 737 



Fertilizer inspection, C. D. Woods and J. M. Bartlett ■. . 737 



FIELD CROPS. 



On the relation of climate to the size of grain of cereals, J. L. Jensen 737 



Alinit in the culture of cereals, L. Malpeaux 739 



Fertilization of grain and grass lands, A. T. Neale 739 



Comparative trial of different clover and grass mixtures for seeding, H. J. 



Wheeler and J. A. Tillinghast 740 



The Golden "S^ine lield pea; its composition and yield per acre, J. Stewart 740 



Chemical composition of maize and its products, H. W. Wiley 745 



Rice — preparation, cultivation, flooding, and harvesting, W. C. Stubbs 741 



Progress of the beet-sugar industry in the United States in 1899, with a sup- 

 plementary report on the cane-sugar industry of the Hawaiian Islands 742 



Investigation of Sumatra tobacco, A. Van Bij lert 743 



