Proceedings. 59 



Ordinary Meeting, February 4th, 1896. 

 Henry Wilde, F.R.S., President, in the Chair. 



The thanks of the members were voted to the donors 

 of the books upon the table. 



Mr. P. J. Hartog, B.Sc, called attention to a 

 photograph of a diseased thigh-bone taken through the 

 tissues by means of Rontgen's rays at the Trousseau- 

 Hospital, Paris. 



Mr. Henry Wilde, F.R.S. (the chair being taken by 

 Dr. Schuster meanwhile), read an additional note on 

 "The indefinite quantitative relations of the physical and 

 chemical forces." He exhibited a series of 50 test tubes 

 filled with a solution of copper sulphate, through which a 

 constant electric current was established, and urged that 

 as a constant amount of copper would be deposited in 

 each cell as well as in the Daniell's cell, 50 times as much 

 copper would be deposited in the series as in the single 

 Daniell's cell. He maintained that if the cells were 

 indefinitely multiplied the electrolysis would be inde- 

 finitely increased in the same way. He added that the 

 same principle finds expression in organic nature in the 

 indefinite increaseof physico-vital force from the multipli- 

 cation of microbia; in the indefinite multiplication of 

 higher organic species through individuals endowed with 

 special organs and functions; and in the transformation of 

 vital into mental force. A discussion ensued, in wfeich 

 Professor Horace Lamb, Dr. Lees, Professor Schuster, 

 Professor Osborne Reynolds, and others took part. 



Professor Boyd Dawkins, F.R.S., made a com- 

 munication on the use of divining-rods for the discovery 

 of underground water, with special reference to some 

 recent prominent reports on the subject. In the course 



