II CONTENTS. 



BOTANY. 



Page, 



Notes on plants of the season, F. L. Harvey . : 824 



Transpiration into a saturated atmosphere, II. H. Dixon 822 



On the formation of proteids and the assimilation of nitrates by pha'iiogams 



in the absence of light, IT. Suzuki 822 



The influence of gases and vapors upon the growth of plants, E. P. Saudsten. 822 



The toxic action of a certain group of .substances, R. II. True 823 



The acquisition of atmospheric nitrogen, W. M. Munson 824 



The king-devil weed, F. L. Harvey 826 



METEOROLOGY — CLIMATOLOGY. 



Meteorological observations, Massachusetts Station 826 



Meteorological observations, Maine Station 826 



Report of the Chief of the Weather Bureau for 1898, W. L. Moore 827 



Monthly bulletins of the River and Flood Service, E. B. Garriott 827 



The probable state of the sky along the path of total eclipse of the sun, May 



28, 1900, F. H. Bigelow 827 



Aneroid barometers, C. F. Marvin 827 



water — SOILS. 



Analysis of Malinesbury soils, C. F. Juritz 827 



Canadian soils, F. T. Shutt 828 



Some investigations on the nitrogenous matter of the soil, A. Pagnoul 829 



On the composition of natural humus sitbstances, G. Andr6 830 



The lime content of soils and nitrification, F. Polzeniusz 830 



Is a lack of lime general in Rhode Island soils? H. J. Wheeler and G. E. 



Adams 832 



Comparative trials of lime worked into the soil before seeding and applied as 



a top-dressing afterwards, H. J. Wheeler and J. A. Tillinghast 832 



The effect of carbon bisulphid on the fertility of soils, E. Wollny 831 



FERTILIZERS. 



The fertilizing value of street sweepings, E. E. Ewell 832 



Contribution to the study of street dust as a fertilizer, A. Casali 832 



Seaweed as manure, J. Hendrick 833 



The black phosphates of the Pyrenees, D. Levat 833 



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



Slyke '. 833 



Inspections for 1897, C. D.Woods 835 



On the occurrence of perchlorate in nitrate of soda and its injurious effect 



upon the growth of cereals and sugar beets, A. Zaharia 834 



Egyptian clay and salt, J. Golding 834 



FIELD CROPS. 



Experiments with field crops, W. Saunders 835 



Farm crops at the experimental farm at Brandon, Manitoba, S. A. Bedford 836 



Farm crops at the experimental farm at Indian Head, Northwest Territories, 



A.Mackay --- 836 



An observation upon the after effect upon the growth of barley of the roots 



of the flat pea (Latliyrm sijJvestris), H. J. Wheeler and J. A. Tillinghast 836 



Experiments with crimson clover and hairy vetch, J. F. Duggar 837 



The cotton crop of 1897 and 1898 846 



Cotton, corn, wheat, and forage crops, H. Benton - 846 



