x CONTENTS. 
Page 
8. On the Pulsations of a Rotating Bell. By G. H. BRYAN.................. 743 
4, On the History of Pfaff's Problem. By A. R. Forsyru, F.RS. ............ 743 
5. On some Geometrical Theorems relating to the Powers of Circles and 
Spheres. By Professor WILLIAM WOOLSEY JOHNSON...........:0cceeeeeees 743 
6. Possibility of Irreversible Molecular Motions, By E. P. CuLvERWELL, 
IMRAN ecw cisco. ate nabaie suck seesi ds esese soe odes eseeer ag sneeenes eae ame 744 
7. On some Arithmetical Functions connected with the Elliptic Functions of 
KG. (By Dr: J. W. 1. (GrAIsHER, FORS, <coc..csscescsseetasceeseeseaeeseetes 745 
8. On Systems of Simultaneous Linear Differential Equations. By A. R. 
MORSY TH, POR Se senecsescs tes seins cwcesee onaidteioensesiescieovee Ss Jee cee ue ae eeeete ee eee eee 745 
9. Chess Problem. By Lieut.-Col. Artan CunnINGHAM, R.H. ...........008 745 
10. On a Remarkable Circle through two Points of a Conic. By Professor 
(GW, MEA... kenceeen cin bieeecidrce tovcesd adutioavene sobs erst est teeth ts esate 745 
11. Ferrel’s Theory of the Winds. By Cuartes Cuampers, F.R.S............. 745 
Department IJ.—GenERAL Puysics AND ELECTROLYSIS. 
1. On a Method of Determining in Absolute Measure the Magnetic Suscepti- 
bility of Diamagnetic and Feebly Magnetic Solids. By Sir Wuirtram 
EO MSON, A): Oya TGs, HEY Ri Sian. up ciwcs desis oe os oes ob lentes coe 745 
2. On the Tension of Water Surfaces, Clean and Contaminated, investigated 
by the Method of Ripples. By Lord RAyeren, Sec.R.S. ....0.........000e 746 
3. On the Adiabatic Curves for Ether, Gas, and Liquid, at High Tempera- 
tures, By Professor, Wie) LUA MBAY, I, 1t.9,- ssms sacs evan ecstenaanh soe een anne eeeeeee 746 
4, Report of the Committee on Hlectrolysis.........ss.s00.0s-csscstseetecsonssenese 746 
5. Report on the State of our Knowledge of Electrolysis and Electro- 
Chemistry. By W.N. SHAW «....cxssc..srcntnecsue:soesasnheen teas ane een 
6, On the Action of Semipermeable Membranes in Electrolysis. By Pro- 
Fessor, W. OSTWALD... ciente1ssces.crevs22s ona dugeedee aware sa eaieora meena 746 
MONDAY, SEPTEMBER 8. 
1. Report of the Committee on the Ben Nevis Observatory ..........seceeeeeees 747 
2. Report of the Committee on Tidal Observations in Uanada ............e0ee8s 747 
3. Report of the Committee for Comparing and Reducing Magnetic Obser- 
NAMLOUS seri sna sais. cesnneceeuscersaecsssceesnti occrye yea cecued tease te eames nnn TAT 
4. Report of the Committee for determining the Seasonal Variation in the 
Temperatures of Lakes, Rivers, and Estuaries .........ccccesscceeedeneeeeseses 747 
5. Report of the Committee on Solar Radiation ..........cs.sceeececacceeecenceeces 747 
6. Report of the Committee on the Volcanic and Seismological Phenomena 
ofa am dente sii seeds ca isota ties Gectisiidass wocsuceedes » +0's.9*9jstne(ioa e Saieie egeeeretS 747 
7. On a Meteorological Observatory recently established on Mont Blane. By 
A. Lawrence Rorcn, §.B., F.R.Met.Soc. of Boston, U.S.A....ss00002.226. 747 
. The Climate of Scarborough compared with that of some other Seaside 
Health Resorts. By Joun Horxryson, F.L.S., F.G.S., F.R.Met.Soc.... 748 
- The Inland compared with the Maritime Climate of England and Wales. 
By Joun, Hopxinson, F.L.S., F.G.S., F.R.Met.Soc, .........2:ccsseeoenneeeees 748 
. A Comparison of the Climate of Halifax, Wakefield, Bradford, Leeds, 
and Hull. By Joun Hopxincon, F.LS., F.G.S., F.R.Met.Soc.......00000 749 
