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. parviflorum. 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 2\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 \d>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 



