VI CONTENTS OF VOL. XVI. FIFTH SERIES. 
Page 
Notices respecting New Books : — 
M. E. Hospitalier's Formulaire pratique de FElectricien. 316 
On Professor Langley's " Selective Absorption," by C. H. Koyl. 317 
On the Eeciprocal Excitation of Elastic Bodies tuned to nearly 
the same pitch, by Dr. G. Krebs 318 
Elevated Coral-Beefs of Cuba, by W. O. Crosby 319 
Postscript to Dr. Croll's Paper on Geological Climatology . . 320 
NUMBEB CI.— NOVEMBER. 
Mr. E. Guthrie on certain Molecular Constants. (Plates IV. 
& V.) 321 
Mr. A. M. Worthington on Laplace's Theory of Capillarity . . 339 
Mr. L. Eletcher on the Dilatation of Crystals on Change of 
Temperature.— Part II * 344 
Dr. J. Croll on the Ice of Greenland and the Antarctic Conti- 
nent, as not due to Elevation of the Land 351 
Mr. F. Y. Edgeworth on the Method of Least Scpares 360 
Mr. C. J. Woodward on an Apparatus to illustrate the Pro- 
duction of Work by Diffusion 375 
Mr. B. T. Glazebrook on Curved Diffraction-gratings. — II.. . 377 
Mr. J. A. Evving on the Magnetic Susceptibility aud Retentive- 
ness of Iron and Steel 381 
Mr. A. Tribe on the Distribution of Electricity on Hollow Con- 
ductors in Electrolytes 384 
Mr. W. B. Browne on the Reality of Eorce 387 
Prof. J. J. Sylvester on the Involution and Evolution of Qua- 
ternions 394 
Influence of Magnetism upon Thermal Conductivity, by John 
Trowbridge and Charles Bingham Penrose 397 
On a new Method of Insulating Metal Wires employed in 
Telegraphy and Telephony, by C. Wiedemann 400 
NUMBER CIL— DECEMBER. 
Professors Liveing and Dewar on Sun-spots and Terrestrial 
Elements in the Sun. (Plate VI.) 401 
Messrs. R. Galloway and E. J. O'Farrell on some Improved 
Laboratory Appliances for conducting many Chemical Ope- 
rations at the same time, and hastening the completion of 
several of them. (Plate VII.) 408 
Mr. L. Fletcher on the Dilatation of Crystals on Change of 
Temperature. — Part III .* 412 
Messrs. E. J. Mills and W. M'D. Maokey on Lines of no 
Chemical Change. (Plate VIII.) ....". 429 
