Proceedings at the Meetings. 
243 
The following Communications were made : 
1. Some Experiments on the electrical properties of a mixture 
of Hydrogen and Chlorine when exposed to light. By Professor 
J. J. Thomson. 
2. On the leakage of electricity through dust-free air. By 
C. T. R. Wilson, M.A., Sidney Sussex College. 
3. On a solar Calorimeter used in Egypt at the total solar eclipse 
of 1882. By J. Y. Buchanan, M.A., Christ’s College. 
4. Some Theorems in regard to matrices. By T. J. I’A. Bromwich, 
M.A., St John’s College. 
5. On the rational space curves of the fourth order. By J. H. 
Grace, M.A., St Peter’s College. 
6. On Trifolium pratense, var. parvijlorum. By I. H. Burkill, 
M.A., Gonville and Caius College. 
A paper on the relations of Radiation to Temperature, by J. 
Larmor, M.A., St John’s College, was postponed. 
January 21 st, 1901. 
In the Optical Lecture Room. 
Sir G. G. Stokes in the Chair. 
Sir George Stokes proposed from the chair that in consequence 
of the very serious illness of Her Majesty the Queen the Society 
do now adjourn out of respect for our beloved Sovereign without 
transacting the business of the meeting. 
This was unanimously resolved. 
Note added February 18 th, 1901. 
The Society here records with profound regret the death of Her 
Most Gracious Majesty Queen Victoria on 22 January 1901. 
VOL. XI. PT. 111. 
18 
