PLATES. 



I. Illustrative of Mr. W. Makower's Paper on a Determination of the 

 Ratio of the Specific Heats at Constant Pressure and at Constant 

 Volume for Air and Steam. 

 II. Illustrative of Prof. A. Schuster's Paper on the Influence of 

 Radiation on the Transmission of Pleat. 

 III. & IV. Illustrative of Prof. R. W. Wood's Paper on Screens Trans- 

 parent only to Ultra-Violet Light, and their Use in Spectrum 

 Photography. 

 V. & VI. Illustrative of Mr. G. A. Campbell's Paper on Loaded Lines in 

 Telephonic Transmission. 

 VII. Illustrative of Mr. C. A. Chant's Paper on the Variation of Potential 



along a Wire transmitting Electric Waves. 

 VIII. Illustrative of Prof. F. L. O. Wadsworth's Paper on the Effect of 

 Absorption on the Resolving Power of Prism Trains, and on 

 Methods of Mechanically Compensating this Effect. 

 IX. Illustrative of Prof. J. R. Townsend's Paper on the Conductivity 



produced in Gases by the Aid of Ultra- Violet Light. 

 X. Illustrative of Mr. S. W. J. Smith's Paper on a Portable Capillary 



Electrometer. 

 XL Illustrative of Mr. H. W. Chapman's Paper on the Problem of 

 Columbus. 

 XII. Illustrative of Prof. J. A. Fleming and Mr. W. C. Clinton's Paper 

 on the Measurement of Small Capacities and Inductances. 



XIII. Illustrative of Prof. J. Trowbridge's Paper on the Gaseous Con- 



stitution of the H and K lines of the Solar Spectrum. 



XIV. Illustrative of Prof. E. Rutherford and Mr. F. Soddy's Paper on 



Condensation of the Radioactive Emanations. 

 XV. Illustrative of Prof. A. Battelli and Mr. L. Magri's Paper on 

 Oscillatory Discharges. 

 XVI. Illustrative of Messrs. K. Honda and S. Shimizu's Paper on the 



Wiedemann Effect in Ferromagnetic Substances. 

 XVII. Illustrative of Prof. S. P. Langley's Paper on " Good Seeing." 



ERRATUM IN VOL. IV. (Sept. 1902). 

 5 x 2740 



ige 329 : 







Fm . j 



X 2 W 2 



_5\ 1 

 * 2 



7 E , 



read — I 



E 2 





_-5\ 



14 

 •5 x 2740 



14 

 Later 1/100 instead of 1/1000. 



= 1000 approx., 

 100 approx. 



