CONTENTS OF VOL. XIX. 
(FIFTH SERIES). 
NUMBER CXVI.—JANUARY 1885, 
Dr. C. R. Alder Wright and Mr. C. Thompson on the Deter- 
mination of Chemical Affinity in terms of Electromotive 
Un no) och sf oye vn gape he = Sie ype = ee 
Dr. James Croll on Arctic Interglacial Periods ............ 
Mr. A. M. Worthington on a Capillary Multiplier. (Plate I. 
PUM. oo Sees a Ss owing on 8,4 <8 oe gos ye ote 
Mr. A. M. Worthington on a Point in the Theory of Pendent 
Mere ettie Lo fiGS 9-0.) 6 ee eee ene ae 
Dr. A. Elsass on anew Form of Monochord .............. 
Prof. W. N. Hartley on the Influence of Atomic Arrangement 
on the Physical Properties of Compounds .............. 
Mr. R. H. M. Bosanquet on Permanent Magnets.—II. On 
Magnetic Decay ; with a Correction to the Value of H at 
ei aN So a oie oe ah. 2ys ss a) sp topo wie we ora sled behave 
Notices respecting New Books :— 
Geology of Wisconsin, Survey of 1873-79. Vol. I. 
Part I. General Geology. IL. Natural History. III. 
MetetersbietneCSOULCES: (2.2 ce cin cine sles ep cn ete ss 
Mr. A. J. Jukes-Browne’s Student’s Handbook of Phy- 
ROG Ns card tie Te a nats a oc ale wr shige city Winle ead sace 
Proceedings of the Geological Society :— 
Prof. A. H. Green on a Section near Lianberis........ 
J. Starkie Gardner on the Tertiary Basaltic Formation in 
2 FELZILG. | ee oe co arr cp naar Fer 
On the Employment of Marsh-gas for producing exceedingly 
Low Temperature, by M. Cailletet .................... 
On the Value of Poisson’s Coefficient for Caoutchouc, by E. H. 
Tey. 200 VTE OOD AU DS ORNS OPEL 
Elementary Phyilotaxy, by Pliny Earle Chase, LL.D. ...... 
On a new Form of Polarizing Prism, by C. D. Ahrens...... 
On the Penetration of Daylight in the Water of the Lake of 
Geneva, by MM. Fol and Hd. Sarasin ..,............. 
NUMBER CXVII.—FEBRUARY. 
Mr. R. H. M. Bosanquet on Electromagnets.—II. On the 
Magnetic Permeability of Iron and Steel, with a new Theory 
SONPONICLISME 2. Sts wie ce eee tee ne ew slnnee 
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