1889.] 



On the Cavendish Experiment. 



253 



Steenstrup (J.), For. Mem. R.S. Mammuthjceger-Stationen ved 

 Predmost. 8vo. Kjobenhavn 1889. With two other Excerpts in 

 8vo. The Author. 



Tejera (M.) Origen y Constitucidn Mceanica del Mundo. 8vo. 

 Barcelona 1889. The Author. 



Volante (A.) Eureka Areostatica ai pie' della Ferrea Corona. 4to. 

 Torino 1888. The Author. 



Walker (J. F.) Communications [extracted] from the Yorkshire 

 Philosophical Society's Report, 1888. 8vo. The Author. 



June 20, 1889. C 



Professor Sir G. GABRIEL STOKES, Bart., President, in the 



Chair. 



Mr. John Aitken, Dr. E. Ballard, Mr. A. B. Basset, Mr. Horace 

 T. Brown, Mr. Latimer Clark, Mr. Lazarus Fletcher, Mr. W. B. 

 Hemsley, Dr. C. T. Hudson, Mr. E % B. Poulton, Professor W. J. 

 Sol las, Mr. Herbert Tomlinson, and Professor G. F. Yeo were 

 admitted into the Society. 



The Presents received were laid on the table, and thanks ordered 

 for them. 



The President announced to the Meeting that it had that after- 

 noon been resolved by himself and the Council to address a letter to 

 the Lord Mayor of London, expressing sympathy with his attempt to 

 obtain some public recognition in this country of services rendered 

 by M. Pasteur to science and humanity, and that the officers, with 

 Sir James Paget, Sir Joseph Lister, Sir Henry Roscoe, and Professor 

 Lankester, had been appointed to represent the Society at the 

 meeting which the Lord Mayor had called for July 1st. 



The following Papers were read : — 



I. " On the Cavendish Experiment." By C. V. Boys, A.R.S.M., 

 F.R.S., Assistant Professor of Physics at the Normal 

 School of Science, South Kensington. Received May 29, 

 1889. 



The Cavendish experiment for determining the constant of gravita- 

 tion, from which the density of the earth may be calculated, is so 

 well known that there is no occasion to describe it. This experiment, 



"VOL. XL VI T 



