XX Proceedings. [February jgth, igoi 



A discussion followed, in which Messrs. Melvill, Weiss, and 

 Nicholson took part. 



Mr. R. S. HuTTON exhibited an almost exact reproduction 

 of Moissan's electric furnace, which has been set up at the 

 Owens College. There it is possible, with a 50 h.p. engine, to 

 produce a current of 700 amperes at 50 volts, and by that means 

 it is anticipated that researches at the high temperatures thus 

 available — viz., 3,500 deg. Centigrade or higher — will shortly be 

 able to be carried out. Graphite prepared in electric furnaces 

 was also shown, as well as specimens of various carbides, carbo- 

 rundum, &c., from the Niagara works. Specimens of chromium 

 and manganese were shown, illustrating the facility with which 

 some of the rarer metals now become available. A modern 

 form of the Lippmann electrometer was also exhibited by 

 Mr. Hutton. 



