October 3 1 St, ipoj.] PROCEEDINGS. v 



Much of the work was done in conjunction with Prof. Fujii, 

 of Tokio, with whom the author is pubUshing a joint paper on 

 the subject in Germany. 



Dr. Herbert Ramsden exhibited and described a model, 

 devised by himself, to illustrate the propagation of sound waves. 



It consists of a series of magnetised needles, suspended 

 vertically so as to vibrate in the same plane with their like poles 

 downwards, and is designed to show (since the needles were 

 constructed and regulated to have equal times of oscillation) 

 most of the phenomena of the longitudinal transmission of 

 waves. 



General Meeting, November 14th, 1905. 



The President, Sir William H. Bailey, in the Chair. 



Mr. George C. Simpson, M.Sc, Lecturer in Meteorology in 

 the University of Manchester, of Daltoii Hall, Victoria Park ; 

 Mr. Charles H. Burgess, M.Sc, Demonstrator of Chemistry 

 in the University of Manchester, Shaftesbury House, Cheadle 

 Huhne; Mr. Alfred Holt, M.A., Research Fellow of the 

 University of Manchester ; and Mr. William Edwin Grim- 

 SHAW, B.A., Physics Master, Manchester Grammar Scnool, 

 4.6, Broadway Street, Oldham, were elected Ordinary Members 

 of the Society. 



Ordinary Meeting, November 14th, 1905, 

 The President, Sir William H. Bailey, in the Chair. 



The thanks of the members were voted to the donors of the 

 books upon the table. 



The following were among the recent accessions to the 

 Society's Library : — " The Collected Mathematical Works " of 

 G. W. Hill, vol. I (4to., Washington, 1905), presented by the 

 author through the Carnegie Institution ; " The Financial History 



