PLATES. 



I. Illustrative of Prof. E. Taylor Jones's Paper on the Elec- 

 trical Oscillations in Coupled Circuits. 

 II. Illustrative of Mr. V. E. Pound's Paper on the Absorption 

 of the different Types of Beta Rays. 

 III. Illustrative of Mr. C. V. Raman's Paper on the Experi- 

 mental Study of Huygens's Secondary Waves. 

 IV. & V. Illustrative of Mr. C. S. Wright's Paper on Variations in 

 the Conductivity of Air enclosed in Metallic Receivers. 

 VI. Illustrative of Prof. J. A. Pollock and Mr. A. B. B. Ran- 

 claud's Paper on the Discharge of Electricity from Glowing 

 Carbon. 

 VII. Illustrative of Mr. R. W. Boyle's Paper on the Absorption 



of the Radioactive Emanations by Charcoal. 

 VIII. Illustrative of Dr. J. P. V. Madsen's Paper on Secondary 

 y Radiation. 

 IX. & X. Illustrative of Messrs. Pollock, Wellisch, and Ranclaud's 

 Paper on the Relighting of the Carbon Arc. 

 XI. & XII. Illustrative of Prof. E. G. Coker's Paper on a Laboratory 

 Machine for Applying Bending and Twisting Moments 

 simultaneously. 



XIII. Illustrative of Mr. R. Hosking's Paper on the Viscosity of 



Water. 



XIV. Illustrative of Prof. J. Trowbridge's Paper on the Doppler 



Effect in Positive Rays. 

 XV. Illustrative of Dr. S. P. Thompson and Mr. E. W. Moss's 

 Paper on the Self-Demagnetizing Factor of Bar Magnets. 



