78 



. . .82 



Thomson . 83 



H. Marshall 



.84 



, . 85 



CONTENTS. 



PAGE 



On the invariant factors of a determinant. By H.- F. Bakeb . . 65 



On Automorphic Functions and the general theory of Algebraic Curves. 

 By H. W. Richmond . . . . . 



On the rise of a Spinning Top. By E. G. Gallop 



On the Dynamics of the Electric Field. By Prof. J. J 



Rust-fungi and the "Mycoplasm" Hypothesis. By Prof. 

 Ward . . . ... 



On Radio-activity from Snow. By C. T. R. Wilson 



Note on the Slipperiness of Ice. By S. Skinner . 



On the probable p?'esence in the Sun of the newly discovered gases of the 



Earth's Atmosphere. By Prof. G. D. Liveing '■■"'. . . . 87 



On the synthesis of carboxy derivatives of pyridine. By W. J. Sell 



and F. W. Dootson . . . 93 



Experiments illustrating new reactions for the identification of Urea and 



of Primary Amines. By H. J. H. Fenton . . . 96 



A rapid method of estimating sugar. By T. B. Wood and R. A. Berry 97 



Selection of seed by chemical methods. By T. B. Wood and R. A. Berry 98 



Modes of Formation of Osones. By R. S. Morrell and J. M. Croets 115 



Note on the Stereochemistry of Benzene. By H. 0. Jones and J. Kewley 122 



A Method of detecting Nickel and Cobalt in the presence of each other. 



By F. W. Dootson . . ' . . . . . . . . 125 



On the Joule-Thomson Effect. By P. V. Bevan . . . . .127 



On a Sensitive Gold-Leaf Electrometer. By C. T. R. Wilson . .135 



