Tunnel Driving at Copper Mountain, B. C. By O. LACHMUND. Distribution of Coal under U. S. Fuel Administration. By J. D. A. MORROW.. Manganese Ore Deposits in Cuba. By E. F. BURCHARD. 591 i Alexander, J.-Metals and Alloys from a Colloid-chemical Viewpoint. Dis- Neal, R. O.-Petroleum Hydrology Applied to the Mid-Continent Fields. Dis- 602 603 Bassett, W. H., and Davis, C. A.-A Comparison of Grain-size Measurements 607 Wilson, H. M.-Employment of Mine Labor. Discussed by W. D. Brennan, 608 ADVERTISING BULLETIN OF THE AMERICAN INSTITUTE OF No. 147 WITH WHICH IS CONSOLIDATED THE AMERICAN INSTITUTE OF METALS MARCH 1919 Published Monthly by the American Institute of Mining Engineers at 212-218 York St., York, Pa., H.A. Wisotzkey, Publication Manager. Editorial Office, 29 West 39th St., New York, N Y., BRADLEY STOUGHTON, Editor. Cable address, "Aime," Western Union Telegraph Code. Subscription (including postage), $10 per annum; to members of the Institute, public libraries, educational institutions and technical societies, $5 per annum. Single copies (including postage), $1 each; to members of the Institute. public libraries, etc., 50 cents each. Entered as Second Class matter January 28, 1914, at the Post Office at PROCEEDINGS OF THE 119TH MEETING From the beginning to the end, the attendance and enthusiasm of the 119th meeting, which was held in New York, Feb. 17 to 20, surpassed all expectations. Besides the ten technical sessions, one of which was in conjunction with the American Institute of Electrical Engineering and one a session of the National Research Council, there were two memorial meetings, one for Dr. Raymond and one for the members who died in service; two joint sessions with the Canadian Mining Institute; and a meeting devoted to pictures of copper mining, milling, and smelting. Of the 732 persons registered, 119 registered in the Institute of Metals Division. Monday's sessions were devoted to the problems of industrial organization, the Institute of Metals Division, and to petroleum and gas. Among the special features of these sessions were the topical discussions on housing and Americanization. Americanization, too, was the topic for discussion by the Woman's Auxiliary Wednesday morning. On Tuesday, nearly 100 members of the Canadian Mining Institute were present to discuss the possibility of bringing about uniform mining laws for the United States, Canada, and Mexico, to obviate the maintaining separate legal departments and managerial forces for the several countries; and to avoid the confusion which, it is said, has led to a duplication of effort and has sometimes created a barrier to international coöperation in mining. Among the Canadian delegation were D. B. iii Dowling, President of the Canadian Institute; John McLeish, Statistician in the Department of Mines; O. S. Finnie, Mining Engineer in the Department of the Interior; H. H. Rowatt, Controller in the Department of the Interior: and Colonel Machin, of the Department of Justice. Wednesday was devoted to the work of the National Research Council, which occupied the entire day and not only the morning as was planned; to the problems of mining, milling, and geology; and to the study of welding problems, together with the American Institute of Electrical Engineers. In all cases the discussion was most animated. The committees in charge of the arrangements were as follows: Committee on Arrangements and Reception.-ALLEN H. ROGERS, Chairman; WALTER S. DICKSON, Secretary; S. H. BALL, G. D. BARRON, H. W. HARDINGE, P. W. HENRY, MRS. SIDNEY J. JENNINGS, J. E. JOHNSON, JR., A. C. LUDLUM, E. P. MATHEWSON, P. A. MOSMAN, H. C. PARMELEE, F. T. RUBIDGE, FOREST RUTHERFORD. Finance Committee.-GEORGE D. BARRON, Chairman; J. Parke_Channing, WALTER DOUGLAS, JAMES GAYLEY, J. H. JANEWAY, C. F. KELLEY, W. H. NICHOLS, JR., W. W. MEIN, WILLIAM L. SAUNDERS. Excursion Committee.-P. W. HENRY, Chairman; J. E. JOHNSON, JR. Banquet Committee.—A. C. LUDLUM, Chairman; F. T. RUBIDGE, E. B. STURGIS. Luncheon Committee.-P. A. MOSMAN, Chairman; E. MALTBY SHIPP, C. A. BOHN. Automobile Committee.-H. W. HARDINGE, Chairman. Entertainment Committee.—E. P. MATHEWSON, Chairman; LAWRENCE ADDICKS, LUCIUS W. MAYER. Tellers. For Officers.-W. S. DICKSON, H. N. SPICER, WILLIAM Young WESTERFor Proposed Amendment.-C. Q. PAYNE, R. C. WARRINER, A. D. BEERS. VELT. NEWLY ELECTED OFFICERS OF THE INSTITUTE The following officers were elected: Horace V. Winchell, of Minneapolis, President; Vice-presidents: Edwin Ludlow, Lansford, Pa.; A. R. Ledoux, New York; Directors: J. V. W. Reynders, New York; George D. Barron, Rye, N. Y.; Charles F. Rand, New York; Louis S. Cates, Ray, Ariz.; Stanley A. Easton, Kellogg, Idaho. CHANGE IN NAME OF THE INSTITUTE By a letter ballot of the members of the Institute, as reported by the tellers and announced by the President at the annual business meeting of the Institute on February 18, 1919, the name of the American Institute of Mining Engineers has been changed to the American Institute of Mining and Metallurgical Engineers. The vote for the amendment to the Constitution making this change was a heavy one for such matters, showing the very wide and deep interest taken by the members in this vital change. The actual count was 1274 for and 672 against. It is the consensus of opinion that this marks an epoch in the history and usefulness of this Institute, and it is expected that the change will presage a large and healthy growth in metallurgical fields. Many metallurgists who knew nothing about mining were loath to join a society of mining engineers, despite the fact that over 35 per cent. of the papers published in our Transactions during the past five years have dealt with metallurgical subjects. The choice of the name to be balloted for had been made by popular canvass and has the double advantage, much to be desired, of retaining the word Engineers and maintaining the former initials of the Institute A. I. M. E. This change will doubtless make the Institute the metallurgical society of the country as it has been the mining society. CANADIAN MINING INSTITUTE DAY Four joint discussions formed the program of the sessions with the Canadian Mining Institute on Tuesday. T. W. Gibson, the representative of the Canadian Mining Institute, opened the discussion on the subject of "Principles of Mine Taxation" the American Institute. was represented by Ralph Arnold, of the United States Treasury Department. Later, Alfred G. Heggem, of Tulsa, Okla., cited an instance in which a high rate of taxations decreased the Government's revenue by retarding the transfer of property. The second discussion in the morning was on the subject "Industry Democracy, and Education." C. V. Corless, represented the visitors and President Jennings the Americans. During the latter part of this discussion, D. B. Dowling, President of the Canadian Mining Institute presided. In the afternoon, Mr. T. A. Rickard, of San Francisco, Cal., opened the discussion by a paper entitled "The English-speaking People. He was followed by Dr. A. R. Ledoux, of New York, who gave a brief talk on "International Coöperation." In it he spoke of the necessity of closer coöperation, also, with Mexico. President Jennings later said that he is planning a trip to Mexico, when he expects to meet with the Local Section in Mexico, at which time he hopes to initiate some discussion of problems that confront the American engineer. The question of a uniform mining law for North America provoked considerable discussion. While most of the talk was confined to the various Canadian laws, the possibilities of uniform laws with Mexico and Central America were also considered. TECHNICAL SESSIONS Institute of Metals Division One session of the Institute of Metals Division was held on Monday morning, Feb. 17, Mr. W. M. Corse presiding. The following papers were presented: Effect of Temperature, Deformation and Grain Size on the Mechanical Properties of Metals. By Zay Jeffries. (Presented by the author; discussed by C. H. Mathewson, P. D. Merica, S. L. Hoyt, and the author.) Volatilization of Cuprous Chloride on Melting Copper Containing Chlorine. By S. Skowronski and K. W. McComas. (Presented by Mr. Skowronski.) Automatic Copper Plating. By J. W. Richards. discussed by A. Silverman.) Two Instances of Mobility of Gold in the Solid State. by title.) (Presented by the author; By E. Keller. (Presented First Year of Leaching by the New Cornelia Copper Co. By H. A. Tobelmann and J. A. Potter. (Presented by title; written discussion by C. A. Rose.) Die Castings and Their Application to the War Program. By Charles Pack. (Presented by title; written discussion by Jesse L. Jones.) Electric Furnace Problems. By J. L. McK. Yardley. (Presented by title.) The second session was held on Monday afternoon, Feb. 17, Mr. William B. Price presiding. The following papers were presented: Comparison of Grain-size Measurements and Brinell Hardness of Cartridge Brass. By W. H. Bassett and C. H. Davis. (Presented by Mr. Bassett; written discussions by W. R. Hibbard, Arthur Phillips, C. H. Mathewson, W. H. White, W. B. Price.) Manganese Bronze. By P. E. McKinney. (Presented by the author; discussed by E. P. Ross, G. H. Clamer; written discussions by Jesse L. Jones, W. M. Corse.) |