TRANSACTIONS OF THE SECTIONS, 
Section AA—-MATHEMATICAL AND PHYSICAL SCIENCE. 
THURSDAY, SEPTEMBER 10. 
Page 
Address by Professor G. Curysrat, M.A., F.R.S.E., President of the Section 889 
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. On the Dilatancy of Media composed of Rigid Particles in Contact. fale 
Professor OsBORNE REYNOLDS, M.A., F.R.S........ccccccccesscesesssceccceesees 
. On Calculating the Surface Tension of Liquids by means of fotaaan, 
Be one or Bubbles. By Professor G. Pirie, M.A...........c0-.ssscoreccseenees 898 
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38. On the Surface Tension of Water which contains a Gas dissolved in it. 
RRMESEIERROT Clap EVREE: MGA» cceacesaacsa-nes sen ss0clacnadsanatcepesccshansdaauns 898 
. Thermodynamic Efficiency of Thermopiles. By Lord Rayirren, D.C.L., 
RM DIELS 2 ecciscncdacs sda ssasusses ossaenesecessss-4 ees debepinsccenctdaruscsdercsaens 898 
. On ae Measurement of the Intensity of the Horizontal gerne of the 
Earth’s Magnetic Field. By Tuomas Gray, B.Sc., F.R.S.E............04+ 898 
On ee Electricity. By Professor C. Micure Smiru, B.Sc., 
eis no pec wna sonsncnanargasesiecss jugs candeseastahsasucanrvebeddas 899 
a Distances in Galvanic Polarisation. By Professor J. LArMor, 
Ace eee ee eee HEHEHE EE HEHEHE HEHEHE OOE EEE EEE EEE EEE EEE EEE EEE EHH EHH HEHEHE TEETH EEE EEE EEE EEE 
On the Employment of Mance’s Method for eliminating the Effects of 
Polarisation, to determine the Resistance of the Human Body. By Dr. 
MRMPEIOOUOM MICAS... ccs ceccsuccevouseteetece seattioaders cs savataucsiecsteesese ses ss 900 
On Contact Electricity in Common Air, Vacuum, and different Gases. By 
Seerrerrroneny, MAL. WES.E, .... ccenschansactchasastgrisnscarscacncisess schada 901 
Ona aa of ae Unmagnetisable Steel. By J. T. Borromizy, 
BENE pte RBs ooo cbenndel sled dec adas de Gdebutecus tudueetraitecscct ties cep Panam 903 
On the Cooling of Wires in Air and in Vacuum. By J. T. Borrominy, 
_ onl LTS: 6 a: Se enneenmenes tees eermerame srry Shr | OAEES 51s 904 
FRIDAY, SEPTEMBER 11. 
On Kinetic Theories of Matter. By Professor A. Crum Brown, 
Reig et ait Soe dd. Ftd AME yh weocet soapacctecash thtnns uscues sahvest aacnedeats 904 
On Kinetic Theories. By Professor G. D. Livurne, M.A., F-R.S. ......... 904 
. On Thermal Effusion and the Limiting Pressure in Polarised ea! “1p 
ESORNASTOND STONEY plils Dis HRS. u..saddeecculdeceab esa consadasthedandsseds Sos 904 
. On a Law concerning Radiation. By Professor ScuustrEeR, Ph.D., F.R.S. 905 
. On Boltzmann’s Theorem. By Professor W. M. Hicks, M.A., F.R.S. ... 905 
