47 



Art. VII. — A New Form of Scale for the use of Engineers 



and Architects. 



By Mr. A. M. Henderson, C.E. 



[Read June 9th, 1881.] 



Art, VIII. — Description of a Hagemann's Vacuum Ane- 

 mometer erected at the Observatory. 



By R. L. J. Ellery, F.RS, F.R.A.S. 



[Read July 14th, 1881.] 



Art. IX. — Some Notes on the Storage of Electricity and 

 Faure's Form of Plan+e's Secondary Battery. 



By W. C. Kernot, M.A., C.E. 



[Read July 14th, 1881.] 



Art. X. — The Origin of Quartz Beefs and Gold. 

 By William Nicholas, F.G.S. 



[Read August 11th, 1881.] 



Art. XI. — Notes on the Sp deification of a recent Patent for 

 the Manufacture of Gas. 



By J. Cosmo Newbery. 



[Read August 11th, 1881.] 



Resolved — " That, in the opinion of this meeting, there is in 

 the specification in question nothing hut kerosene and its congeners 

 from Tvhich gas for illuminating purposes can be produced." 



F 



