TRANSACTIONS OF THE SECTIONS. 



Section A.— MATHEMATICAL AND PHYSICAL SCIENCE. 



THURSDAY, AUGUST 28. 



Page 

 Address by Professor Sir William Thomson, M.A., LL.D., D.C.L., F.E.S.L. 

 & E., F.R.A.S., President of the Section 613 



1. On the Action of Lubricants. By Professor Osborne Reynolds, F.R.S. 622 



2. On Kinetic Elasticity as illustrating the Mechanical Theory of Heat. By 

 Professor Osborne Reynolds, F.R.S 622 



3. On the Vapour-pressure of a substance in the solid and liquid states at the 



same temperature. By Professor William Ramsay, Ph.D., and Sydney 

 Young, D.Sc 622 



4. On the Law of Total Radiation at High Temperatures. By Professor J. 



Dewar, M.A., F.R.S 623 



5. On Loss of Heat by Radiatiou and Convection as affected by the dimen- 



sions of the cooling body, and on Cooling in Vacuum. By J. T. Bottom- 

 ley, M.A., F.R.S.E 623 



6. On a Gyrostatic Working Model of the Magnetic Compass. By Professor 



Sir William Thomson, LL.D., F.R.S 625 



7. Recent Improvement in Apparatus and Methods for Sounding Ocean Depths. 



By Rear-Admiral Daniel Ammen, U.S. Navy 629 



FRIDAY, AUGUST 29. 



1. The Seat of the Electromotive Forces in the Voltaic Cell. By Professor 

 Oliver J. Lodge, D.Sc 631 



2. Report of the Committee for constructing and issuing practical Standards 



for use in Electrical Measurements 631 



3. On certain practical applications of a new Mechanical Principle. By Pro- 



fessor H. S.Hele Shaw 631 



4. On some Irregularities depending on Temperature in Baily's experiments 



on the Mean Density of the Earth. By Professor W. M. Hicks, M.A 632 



5. On Safety Fuses for Electric Circuits. Bv Professor Sir William Thom- 

 son, LL.D., F.R.S *. 632 



6. A Lecture Experiment on Induction. By Professor Lord Rayleigh, 

 LL.D., F.R.S 632 



7. On Telephoning through a Cable. By Professor Lord Rayleigh, LL.D., 

 F.R.S 682 



