XXXn CONTENTS. 



PAGE 



AsHDOWN, H. H. — Heat Treatment of Steel Forrjings 352 



Adam, A. T. — Wire-drawing 427 



Sm ALLEY, O. — Influence of Arsenic on Braxs 428 



Janssen, W. A. — Use of Titanium in Steel-making 429 



EsTES, C. — Bibliography of Alloy Systems 429 



MiLLEK, Gr. A. — Determination of Grain-size of Annealed Brass 429 



Johnson, J. E. — Foundry Irons 516 



Mathewson, 0. H., (S: E. M. Thalheimer — Annealing of Arsenical Brass .. .. 516 



Hurst, J. E. — Cast-iron : with Special Reference to Engine Cylinders 517 



Ellis, O. W. — Machining Properties and Structure of Brass .. .. 518 



Johnson, F. — Structure and Llectrical Conductivity of Copper .. .. 518 



Portevin, A., & G. Arnoo — Heat Treatment of Aluminium-bronze 519 



TsoHiscHEWSKY, N. — Case-hardening of Iron by BoTon 519 



Stengeb, E. p. — Carbon-concentration and Exfoliation in the Case-hardening of 



Steel 519 



TscHiacHEWSKY, N., & N. Shulgin — Determination of the Line SE in the Iron- 

 carbon Diagram 520 



Mathewson, C. H. — Ancient Peruvian Bronzes .. 636 



Czochralski, J. — Methods and Results of Etching .. 636 



TscHiscHEWSKY, N., «fe A. Hebdt. — Alloys of Iron and Boron 637 



Langenbekg, F. C. — Cementation of Iron hy Hydrocarbon Gases 637 



Thompson, F. C. — Influence of Surface-tension on the Properties of Metals . . . . 638 



PROCEEDINGS OF THE SOCIETY. 



Meeting, December 20, 1916 173 



January 17, 1917 179 



February 21, „ 260 



March 21, „ 263 



April 18, „ 353 



May 16, „ 356 



June 20, „ 430 



October 17, „ 639 



November 21, „ 643 



General Index to Volume 647 



