VI 



CONTENTS OF VOL. XXIX. FIFTH SERIES. 



NUMBER CLXXX.— MAY. Page 



Eev. Frederick J. Smith on a New Form of Electric Chrono- 

 graph. (Plate IX.) 377 



Mr. Ward Coldridge on the Electrical and Chemical Properties 

 of Stannic Chloride ; together with the Bearing of the Results 

 therein obtained on the Problems of Electrolytic Conduction 

 and Chemical Action. — Part I. Experimental Observations. 383 



Mr. Herbert Tomlinson on the Yillari Critical Points of 

 Nickel and Iron 394 



Dr. Gr. G-ore on a New Method and Department of Chemical 

 Research , 401 



Mr. Spencer U. Pickering on the Nature of Solutions 427 



Mr. T. Mather on the Shape of Movable Coils used in 

 Electrical Measuring-Instruments 434 



Mr. Shelford Bidwell on the Magnetization of Iron in Strong 

 Eields 440 



Prof. J. J. Thomson on the Passage of Electricity through 

 Hot Grases 441 



Notices respecting New Books : — 



Dr. Gr. Chrystal's Algebra : an elementary Textbook for 

 the higher classes of Secondary Schools and for Col- 

 leges 449 



On Electrical Oscillations in Straight Conductors, by Prof. 

 Stefan 450 



On the Oscillations of Periodically Heated Air, by Dr. Mar- 

 gules 452 



NUMBER CLXXXL— JUNE. 



Mr. James C. M c Connel on the Theory of Eog-Bows. 

 (Plate X.) 453 



Prof. C. Runge on a Method of Discriminating Real from 

 Accidental Coincidences between the Lines of Different 

 Spectra 462 



Dr. Gr. Johnstone Stoney on Texture in Media, and on the 

 Non-existence of Density in the Elemental iEther 467 



Prof. W. Ostwald on the Theory of Dropping Electrodes. — 

 Reply to Mr. Brown 479 



Mr. Ward Coldridge on the Electrical and Chemical Properties 

 of Stannic Chloride; together with the Bearing of the 

 Results therein obtained on the Problems of Electrolytic 

 Conduction and Chemical Action. — Part II. Theoretical 

 Considerations , 480 



Mr. Spencer U. Pickering on the Theory of Osmotic Pressure 

 and its bearing on the Nature of Solutions 490 



