February 2ndy ipo^.] PROCEEDINGS. xi 



The President announced the death of Dr. Karl Alfred 

 von Zittel, Professor of Palaeontology and Geology at Munich, 

 and an Honorary Member of this Society, which took place on 

 January 5th, 1904. 



The President exhibited two specimens of chalcedony 

 containing enclosed water, and described the mode of their 

 formation by a continued deposition of siliceous layers inside a 

 cavity in a volcanic rock. When there is no empty space left 

 the stone is called an agate. 



The President also stated that onyxes were invariably of 

 artificial formation, the method adopted in former times being to 

 saturate a portion of a chalcedony with honey, and to heat the 

 mass till charring took place, and in modern times to employ 

 sugar and strong sulphuric acid for the same purpose. 



Mr. H. E. ScHMiTZ, M.A., B.Sc, read a paper entitled, 

 "On the Specific Heats and Specific Volumes of 

 •certain Alloys," in which he showed that the calculated and 

 ■ observed values in the cases examined agreed very closely. 



Mr. Frank Foster, B.Sc, read a paper entitled, "On 

 Phenomena due to Repetitions of Stress, and on a 

 New Testing Machine." 



General Meeting, February 2nd, 1904. 



Professor W. Boyd Dawkins, D.Sc, F.R.S., President, 

 in the Chair. 



Miss Catherine Radford, B.Sc, of Owens College, was 

 elected an ordinary member of the Society. 



Ordinary Meeting, February 2nd, 1904. 



Professor W. Boyd Dawkins, D.Sc, F.R.S., President, 

 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 



