Proceedings. 147 



Ordinary Meeting, March 22nd, 1892. 



Edward Schunck, Ph.D., F.R.S., F.C.S., President, 

 in the Chair. 



The thanks of the members were voted to the donors of 

 the books upon the table. 



Reference was made to the deaths of Mr. OLIVER 

 HEVWOOD, ordinary member, and Professor HERMANN 

 KOPP, of Heidelberg, honorary member. 



The discussion on Dr. SCHUNCK's paper on "Some 

 Ancient Dyes," read at the previous meeting, was resumed 

 by Dr. Bottomley, Mr. W. Thomson, Mr. C. O'Neill, 

 and the President. 



A discussion also took place on the artificial colouration 

 of flowers through the roots, some additional experiments 

 being described, and Mr. CHARLES BAILEY giving an 

 account of experiments by M. Maxime Cornu, a dozen 

 years ago, who stated that the dyes appeared to stop the 

 growth of the plants. Professor Hare pointed out that a 

 similar paralysing influence is observable in staining 

 microbia with aniline dyes. 



Professor H. B. Dixon, F.R.S., read a paper on " The 

 Explosion of Carbonic Oxide and Oxygen with other 

 Gases," relating to experiments by Professor Bekstoff, of 

 St. Petersburg, confirming the result arrived at by Mr. 

 DlXON, that the mixture of gases dried by phosphoric acid 

 does not explode. Bekstoff found that cyanogen confers 

 inflammability on the mixture. This had been previously 

 recorded by Mr. DlXON, who also found that carbon 

 bisulphide and oxygen could be fired in a mixture of car- 

 bonic oxide and oxygen without causing the union of more 

 than 10 per cent of the latter. 



