April 2(^th, \(^\(^?^ Proceedings. xv. 



If the cold, concentrated solution be heated to 60 to 70 

 degrees Centigrade excellent deposits were obtained at 

 current densities of from 60 to 160 Amperes per sq. ft., 

 i.e., up to 50 times the r,a.te at which deposits can be ob- 

 tained from the cold dilute solution. 



The best acidity for the hot bath is from -oi to -02 

 Normal, obtained by adding up to -5867 cc. of the strong 

 acid per litre of solution. 



The addition of powdered wood charcoal to both hot 

 and cold baths has a good effect on the deposits, in pre- 

 venting deposition of hydroxides on the cathodes ; and on 

 the solution, by largely preventing the oxidation of the iron 

 salt. 



Heat treatment of iron deposits on steel bases has a 

 beneficial effect, the deposited iron being toughened and 

 the adhesion greatly strengthened. Annealing at above 

 900° C. is necessary to produce this effect, and case- 

 hardening and further heat treatment such as quenching 

 and tempering may then be carried out if desired. 



Annual General Meeting, April 29th, 1919. 



The President, Mr. William Thomson, F.R.S.E., F.I.C, F.C.S., 

 in the Chair. 



The Annual Report of the Council and the Statement of 

 Accounts were presented, and it was resolved : — 



" That the Annual Report together with the Statement of 

 Accounts, be adopted, and that they be printed in the Society's 

 Proceedings." 



Mr. J. Wilfrid Jackson and Mr. J. .H. Wolfenden 

 were appointed Scrutineers of the balloting papers. 



The following members were elected Officers of the 

 Society and Members of the Council for the ensuing year : — 



President: G. Elliot Smith, M.A., M.D., F.R.S. 



Vice-Presidents : W. W. Haldane Gee, B.Sc, M.Sc.Tech., 

 A.M.I.E.E. ; Francis Jones, M.Sc., F.R.S.E., F.C.S.; 

 R. L. Taylor, F.C.S., F.I.C. ; William Thomson, F.R.S.E., 

 F.I.C, F.C.S. 



Secretaries: George Hickling, D.Sc, F.G.S. ; H. F. 

 Coward, D.Sc, F.I.C. 



Treasurer : W. Henry Todd. 



Librarian : C. L. Barnes, M.A, 



Ctirator: W. W. Haldane Gee, B.Sc, M.ScTech. 



Other Members of the Council : Francis Nicholson, F.Z.S. 

 E. L. Rhead, M.ScTech., F.I.C. ; F. E. Weiss, D.Sc, F.R.S., 

 F.L.S. ; A. Lapworth, D.Sc, F.R.S. , F.I.C; Kenneth Lee; 

 C E. STROMEYER,,M.Inst.C.E. M.Inst.M.E.; W. M. Tattersall, 

 D.Sc. ; H. W. Kearns, B.Sc, J. P. ; Leonard E. Vlies, F.I.C 

 F.C.S. 



