TRANSACTIONS OF SECTION B. 293 



Section B.— CHEMICAL SCIENCE. 

 President of the Section — Professor J. Dewae, M.A., F.R.S., L. & E. 



THURSDAY, AUGUST 21, 1879. 

 The President delivered an Address. 



The following Reports and Papers were read : — 



1. Report of the Committee on the Chemistry of some of the lesser known 

 Alkaloids. — See Reports, p. 133. 



2. On some Relations between the Numbers expressing the Atomic Weights 

 of the Elements. By "Walter Weldon, F.R.S.E. 



3. On the Synthesis of Biphenyl Propyl. By M. R. D. Silva. 



4. Recent Researches in Explosive Agents. By F. A. Abel, F.R.S. 



5. On Vapour Bensities. By Professor Dewar, F.R.S. 



FRIDAY, AUGUST 22, 1879. 



The following Papers were read : — 



1. On Large Crystals of Mercury Sulphate. By Philip Braham, F.G.S. 



The crystals exhibited had taken over two years in forming, and were due 

 to the presence of a trace of Nitric Acid in the sulphuric in which they were 

 formed. 



2. On the Manufacture of Crucible Steel. By Henry S. Bell, F.C.S., #•£ 

 The manufacture of crucible steel is one of the most important industries con- 

 nected with the town of Sheffield, which boasts of not less than 120 firms engaged 

 in the production of this material. Notwithstanding the enormous output of 

 steel by the Bessemer and Siemens-Martin processes, this kind of steel is unrivalled 



