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CONTENTS OF VOL. VIII. 
(SIXTH SERIES). 
NUMBER XLIJII.—JULY 1904. 
Messrs. O. W. Richardson, J. Nicol, and T. Parnell on the 
Diffusion of Hydrogen through Hot Platinum .......... 
Prof. J. D. Everett on Normal Piling, as connected with 
Osborne Reynolds’s Theory of the Witork6s. aR02 i. SI 
Prof. A. Anderson on the Force on a Magnetic Particle in a 
Re aT BRC Sr ohe7 bhi Bales Ss SN ee 
Mr. 8S. H. Burbury on the Theory of Diminishing Entropy. . 
Mr. 8. OC. Laws on the Magnetic Susceptibility of Alloys of 
oP) TATE 2108 Vira es PE Oe 
Dr. A. F. Zahm on Atmospheric Friction on Even Surfaces. 
ire Note by Lord Rayleieit os. ose ee ee ee | 
Prof. J. A. McClelland on the Penetrating Radium Rays .. 
Prof. S. P. Langley on a Possible Variation of the Solar 
Radiation, and its probable Effect on Terrestrial Tem- 
pearbnee( bese EE ee ed le ee ere 
Mr. W. Daddell on some Instruments for the Measure- 
ment of Large and Small Alternating Currents. (Plate III.) 
Lord Rayleigh on the Electrical Vibrations associated with 
aioeterminated Conducting Kods ....i2...6 06.066. 06%. 
Messrs. C. Le Rossignol and C. T. Gimingham on the Rate 
Geecay of Vhorium: Hmanation. ii 0063.0. .0 060 e006 08% 
Mr. J. J. Taudin Chabot on a Compact Arrangement for 
Reading off Deflexions (of Galvanometers, &c.), with the 
Possibility of Increasing the Sensitiveness without Increase 
mmemineceOr Wess OF MiP. 5c 5- eee ae we les 
Notices respecting New Books :— 
A. Korn’s Elektrische Fernphotographie und Ahnliches. 
H. Poincaré’s Théorie de Maxwell et les Oscillations 
Hertziennes—La Télégraphie sans Fil ............ 
