VU1 CONTENTS OF VOL. XXV. FIFTH SERIES. 



Page 



Proceedings of the Geological Society : — 



Report on the Eecent Work of the Geological Survey in 



the North-west Highlands of Scotland 515 



Mr. W. Barlow on the Horizontal Movements of Eocks 517 

 Mr. J. E. Marr and Prof. H. A. Nicholson on the Stock- 

 dale Shales 519 



Mr. A. Harker on the Eruptive Eocks in the Neigh- 

 bourhood of Sarn, Caernarvonshire 520 



On Mountain Formation, by T. M. Eeade 521 



On the Magnetism of Organic Bodies, by S. Henrichsen .... 522 

 On the Insulating Action of various Substances in respect of 

 Eadiant Heat, by H. C. Vogel * 523 



Index 524 



PLATES. 



I. Illustrative of Mr. E. F. J. Love's Paper on a Method of Piscrimi- 

 nating Real from Accidental Coincidences between the Lines of 

 different Spectra. 



II. Illustrative of Mr. C. V. Boys's Paper on Experiments with Soap- 

 bubbles. 



II. Illustrative of Mr. W. E. Sumpner's Paper on the Variation of the 

 Coefficients of Induction. 



IV. Illustrative of Profs. W. E. Ayrton and J. Perry's Paper on the 

 Magnetic Circuit of Dynamo Machines. 



