II CONTENTS, 



Page. 



Detection of small quantities of arsenic in foods, J. C. Berntrop 916 



Titration of arsenious acid with potassium permanganate, O. Kiihiing 91 ti 



Methods of estimating oaffein, Beitter 91(i 



A new method of determining manganese, G. von Knorre 916 



Miscellaneous chemical work, R. H. Shaw 916 



An apparatus facilitating the analysis of sugar beets, R. H. Shaw 916 



A new form of alkalimeter, C. B. Davis 916 



A new design for potash bulbs, J. N. Tervet 916 



A nitrogen apparatus, J. A. Wesener 917 



A digestion stand for nitrogen determination, R. Woy 917 



New apparatus, C. B. Williams 917 



New laboratory apparatus, F. Janda 917 



BOTANY. 



Investigation of flower buds, E. S. Goff 917 



Biological investigations on the ripening of wood of the grape, F. Kdvessi 917 



The influence of formalin on the germination of oats, F. Cranefield 918 



Effect of alkali soils upon seedling plants, T. H. Kearney and F. K. Cameron.. 918 



Formation of sodium carbf>nate, or black alkali, by plants, F. K. Cameron 919 



Resistance to black alkali l)y certain plants, F. K. Cameron 919 



Can leucin and tyrcsin be used as plant nutrients? E. Schulze 919 



Organic nitrogen and cultivated plants, A. Thomson 919 



The bacteria of root tubercles of Leguminosa', P. Neumann. 919 



Occurrence of nitrogen-assimilating bacteria in the soils, P. Neumann 919 



The North American species of Spartina, H D. i\Ierrill 920 



Inventory of foreign seeds and plants, No. 9, E. A. Bessey 920 



Collection of economic and other fungi, Flora W. Patterson 920 



Poisonous and edible mushrooms, II . Garman 920 



BACTERIOLOGY. 



Enzyjns and their application, I. J. Effront, translated bj^ S. C. Prescott 920 



The fermentation of tea leaves, C. R. Newton 921 



Contribution to the bacterial flora of the Sydney water supply, R. G. Smith 921 



A process for inoculating the earth with soil bacteria, F. Bayer & Co 921 



Concerning oHgonitrophilous microbes, ]M. W. Beijerinck 921 



Bacteriological investigation of the roots and seeds of sulla, K. H. Nicolai 921 



The cleavage of butter fat by micro-organisms, O. Laxa 921 



METEOROLOGY. 



Loss of life in the United States bv lightning, A. J. Henrv 921 



Report of the Chief of the Weather Bureau, 1900-1901, W. L. :Moore 922 



Meteorological observations, C. S. Phelps 922 



Meteorological observations at Maine Station 922 



Meteorological observations, J. E. Ostrander and H. L. Bodfish 923 



Meteorological record for 1900 at New York State Station 923 



Meteorological observations, W. B. Alwood 923 



Meteorological o})servations at Guatemala, 1857-1898, D. Gonzalez 923 



Total rainfall for 1901 at different places in Cape Colony 923 



Rainfall in the agricultural districts of Queensland, C. L. Wragge 923 



Composition of Barbados rainfall 923 



Forests and rainfall, W. L. Summers 923 



On the climate of Tunis, G. Ginestous 923 



Frost injuries to the winter plantings of the year 1901 , P.. Sorauer 923 



Text-book of meteorology, J. Hann 923 



WATER SOILS. 



Artesian water 924 



The artesian wells of South Dakota, J. E. Todd 924 



Field operations of the Division of Soils, 1900, M. Whitney et al 924 



Results of investigations on the Rothamsted soils, B. Dyer 927 



A study of the available mineral plant food in soils, C. C. Moore 927 



Nitrates in cultivated field soils, F. H. King and A. R. Whitson 930 



Studies on black marsh soils, F. H. King and A. R. Whitson 931 



Some geobotanic experiments, V. Nal)okikh 932 



