824 



INDEX. 



Uranium, on the production of 



radium from, 768. 

 Virial, on the equation of, 494. 

 Viscous liquids, experiments with 



rotating, 251 ; on the law of flow 



of, 685. 

 Water, on the transmission of gases 



through, 360. 

 Watkin (E. L.) an an interference 



apparatus for the calibration of 



extensometers, 129. 

 Waves, on deep-water ship-, 733. 

 Williams (W. E.) on the magnetic 



change of resistance in iron, nickel, 



and nickel -steel, 77. 

 Willows (.Br. R. S.) on the action 



of a magnetic field on the discharge 



through a gas, .",70 ; on the action 



of radium on the electric spark, 



378. 



Wires, apparatus for determining 

 Young's modulus for, 258 ; onth^ 

 slow stretch in metal, subjected 

 to constant pull, 513. 



Wood (A.) on the spontaneous 

 ionization of air in closed vessels, 

 550. 



Wood (Prof. R. W.) on anomalous 

 dispersion of the magnetic rotation 

 of the plane of polarization, 725. 



Woolacott (Dr. D.) on the North- 

 umberland and Durham coalfield. 

 286. 



Young (Prof. S.) on the boiling- 

 points of homologous compounds. 

 1. 



Young's modulus for thin wires, 

 apparatus for determining, 258* ; 

 for glass, determination of, 413, 



Zinc, on the radiation from, 531, 



END OF THE NINTH VOLUME. 



Printed by Taylor and Francis, Red Lion Court, Fleet Street. 



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