II CONTENTS. 



Page. 



The xanthin Ixxlies of meat extracts, K. INlicko 337 



Electrolytir estimation of ininute quantities of arsenic, T. K. Thorpe 337 



Determination of vanilhn in vanilla, A. Moulin 337 



Detection of mineral acid in acetic acid and vinegar, P. Schidrowitz 337 



New method for determination of halogen compounds, II. Baubigny and G. 



Chavanne 337 



The use of normal sodium oxalate in quantitative analysis, S. P. L. Sorensen. 337 



Testing sodium oxalate and its use in volumetric analysis, B. P. L. Sorensen. . 337 

 Absorption of nontanning substances by hide powder, H. K. Procter and F. A. 



Blockey 337 



Select methods of chemical analysis, A. Classen and H. Cloeren 337 



Textbook of chemical technology, F. Fischer 338 



Plant and agricultural chemistry for students and agriculturists, M. Soave 338 



Introduction to the study of agricultural chemistry, K. Asoand E. Pozziescot. 338 



An apparatus for the determination of nitrogen, P. Marquis 338 



A method of calibrating burettes, D. W. Horn and Elizabeth M. van Wagener. 338 



Picnometers, R. Leimbach „ 338 



A new condenser, Braconnier and G. Chatelain 338 



A pressure regulator for fractional distillation, G. Bertrand 338 



A new absorption apparatus and safety tube, H. Vigreux 338 



A gas furnace for laboratories, K. Friedrich 338 



On the history of the thermometer, F. Burckhardt 338 



International catalogue of scientific literature. D — Chemistry, II 338 



BOTANY. 



The synthesis of albuminoids by plants, E. Laurent and E. INIarchal 338 



Influence of light and darkness upon growth and devolopment, D. T. MacDougal 339 



The influence of a lack of oxygen on plants, M. Dude 339 



The effect of sulphurous acid on plants, A. Wieler 340 



The presence of hydrocyanic acid in the buds of Prunus, E. Verschaffelt 340 



The presence of solanin in tobacco seed, J. Starke 340 



The role of diffusion and osmotic jiressure in plants, B. E. Livingston 340 



The electro-motive force in plants, A. B. Plowman 340 



Recent investigations in plant hybridization, C. Correns 341 



Temperature of the subterranean organs of plants, H. H. Dixon 341 



Vegetation of the Landes and that of Fontainebleau, G. Bonnier 341 



Ferns, C. E. Waters 341 



METEOROLOCJY — CLIM.\TOLOGV. 



Methods of meteorological investigation, W. N. Shaw , 341 



Tables of daily precipitation for the years 1893, 1894, 1895 342 



Meteorological observations, J. E. Ostrander and F. F. Henshaw 342 



Annual precipitation in Oklahoma, C. M. Strong 342 



Meteorological observations, C. B. Ridgaway 342 



British rainfall, 1902, H. S. Wallis and H. R. Mill 342 



"Red rain" and the dust storm of February 22, T E. Thorpe 342 



Meteorological annual for 1903, A. Lancaster 342 



Meteorology of the spring of 1903 342 



A study of the climate of Tmiis, G. Ginestous 342 



Indian rainfall, J. Eliot 342 



Variations in barometric pressure and the forecasting uf weather, J. Peroche . 342 



WATER SOILS. 



The artesian waters of South Dakota, J. H. Shepard 343 



Significance of silicic acid in Avaters of mountain streams, \V. P. Heatlden 343 



On the application of fluorescein in underground hydrology, E. A. JNIartel 343 



Soil moisture investigations for 1901 and 1902, J. J. Vernon and J. D. Tinsley. . 343 



On the mechanical analysis of soils, T. Schloesing 344 



Assimilation of the minerals of the soil by plants, J. Crochetelle 344 



Practical methods for maintaining the fertility of the soil, W. Saunders 344 



Soils — their requirements and improvements, H. J. Wheeler 344 



Unprocluctive black soils, II. A. Huston 345 



Soil conditions in the Philip])ines, C. W, Dorsey 345 



The preservation of the soil from damage caused by sluits, E. B. Bradfield . . 345 



Reclamation of drift sands in Cape Colony, C. D. H. Braine . . . 345 



Agricultural geology, J. E. ]\Iarr 345 



