269 
Ordinary Meeting, April 5th, 1864. 
E. W. Binney, F.K.S., F.G.S., President, in the Chair. 
grfrt);>9i 4 uft nl Ji ioi‘im ot anobno/ur 
Mr. John Eastham was elected an Ordinary Member of 
the Society. 
Messrs. H. M. Okmeeod and G. C. Lowe were appointed 
Auditors of the Society’s Accounts for the present Session. 
Mr. Bottomley gave the results of some experiments upon 
the estimation of sulphur made according to a method devised 
some time ago by M. Pelouze. This method had been 
brought under the notice of the Society by Dr. Calvert, as 
being a quick and approximate one ; the present experimenter 
had, however, obtained these approximations within such 
wide limits that he had not found the process available for 
the purpose intended. In these experiments, 20 grains of 
the ore, very finely powdered, were mixed with 100 grains 
of carbonate of soda, 100 grains of chlorate of potash, and 
140 grains of common salt. The carbonate of soda and 
common salt were always heated previous to an experiment, 
to ensure their being quite dry. These materials were well 
mixed for about ten minutes in a porcelain mortar. 
Proceedings— Lit, and Phil, Society— No. 16.— Session 1863-4. 
