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The sum of $250 was appropriated to the Chicago Section. The President was authorized to appoint five members of the Board of Directors, including himself as Chairman, to discuss with other technical societies the proper organization for handling all matters of joint interest to the profession of engineering as distinct from purely technical activities, and to submit its findings in the form of recommendations to the Board of-Directors. Charles F. Rand was appointed a Trustee of the United Engineering Society to succeed himself. John H. Janeway was elected a member of the Library Board, vice Karl Eilers, resigned. Alexander C. Humphreys was elected a member of the Library Board to succeed himself.

Jan 1, 1917

The Society of Automobile 'Engineers is planning to hold its Annual Meeting on Jan. 11, 1917. The Society extends a cordial invitation to the members of the Institute to attend a technical session on the afternoon of that day, in the auditorium of the Engineering Societies Building, and to take part in the proceedings. Papers are being prepared on the subjects of high-speed engines, dynamics of the automobile and electrical equipnment. It is also expected that important papers will be presented on aerial navigation over water, and the use of motor boats in war. Captain V. E. Clark of the Signal Corps is to give a paper on the requlrements of aeroplane design particularly as regards the experience of the Army in using aeroplanes in Mexico

Jan 1, 1917

By Richard H. Terhune

Slag and matte, in lead and copper smelting, are, for convenience of removal, tapped into pots of small capacity, usually of paraboloid form, of cast-iron, weighing 275 to 300 pounds, and holding the same weight of slag. As in many smelting districts one ton of ore makes a ton and a quarter of slag, a large number of pots is needed to equip an ordinary plant. Sudden and frequent expansion of the solid bowl causes the pots to crack at the bottom in a few months, and the matte, a very fluid sulpliide, enters these rough fissures and speedily corrodes its way through the vessel. 1 find, from one year of practice with a slag-

Jan 1, 1887

A $5000 contract to explore for asbestos in Marinette County. Wis., has been entered into between the Government and the Star Mining Co. of Madison, Wis. The Government will contribute 90 pct or $4500 to the cost of the project. The United States presently produces about 8 pct of its asbestos requirements. "Sulphur stockpiles are at a minimum for national security arid must not be further reduced," was the warning given by L. M. Williams, Jr., president of Freeport Sulphur Co. He stated that although the long-range outlook is favorable , current sulphur production cannot meet the demand and as a result the United States faces a crisis in the coming months.

Jan 12, 1951

By Calvin Pierson, R. S. Dean, E. P. Barrett

Wrought iron and steel have been prepared from limonite, hematite, and magnetite ores by gaseous reduction, compacting and squeezing the resulting product at high temperature and finally melting the wrought iron so formed. The structure, analyses, mechanical and magnetic properties of the products are given. It is found that the structure of iron ores is best studied by subjecting them to gaseous reduction and using metallographic technique on the resulting sponge iron. In this way the cell structure of iron ore is clearly shown. The wrought iron made by heating compacted sponge iron to 1450" C., and forging, shows a cell structure inherited from the ore. This cell structure is further preserved in melting and casting the wrought iron. The probable relation of the properties of the materials to this inherited cell structure is discussed.

Jan 1, 1935

As a service to its readers, MINING ENGINEERING is publishing the mineral industry portion of the 1957 list of Accredited Undergraduate Engineering Curricula in the United States. This list, revised annually, is issued by the Education Committee of the Engineers Council for Professional Development, and covers all phases of engineering education. The AIME is actively represented on ECPD, which was jointly organized by the Founder Societies and various other groups interested in the professional recognition of engineers. ECPD is merely authorized by its constituent organizations to publish a list of accredited engineering curricula for use as desired by those agencies which require such a list. It has no authority to impose any restrictions or standardizations on schools. (Date following school refers to year of initial accrediting.)

Jan 7, 1958

Organization Place Date 1918 American Society of Mechanical Engineers...:.. Worcester, Mass. June 4-7 American Institute of Chemical Engineers Berlin, N. H. June 19-22 American Concrete Institute Atlantic City, N. J. June 24-26 American Society for Testing Materials Atlantic City, N. J. June 25 28 American Institute of Electrical Engineers Atlantic City, N. J. June 26-28 New York Electrical Society, Annual Meeting... New York, N. Y. June American Institute of Mining Engineers Colorado Sept. 2-7 National Association of Stationary Engineers.... Cincinnati, 0. Sept. 9-13 British Iron and Steel Institute, Autumn Meeting London, Eng. Sept. 12-13 National Exposition of Chemical Industries New York, N. Y. Sept. 23-28 American Chemical Society Cleveland, 0. Sept. National Petroleum Association.: Atlantic City, N. J. Sept.

Jan 6, 1918

The personnel of the. Naval Advisory, Board on Inventions, of which Thomas A. Edison is to, be Chairmen, has- been announced. by' Secretary of the Navy Daniels, as follows: W. R. WHITNEY L: H. BAEKELAND American Chemical Society. FRANK JULIAN SPRAGUE, American Institute of Electrical Engineers. B. G. LAMME ROBERT SIMPSON WOODWARD ARTHUR GORDON WEBSTER American Mathematical Society. ANDREW MURRAY HUNT American Society of Civil -Engineers. ALFRED CRAVEN MATTHEW BACON SELLERS American Aeronautical Society. -HUDSON MAXIM PETER COOPER HEWITT Inventors' Guild. THOMAS ROBINS . HOWARD COFFIN ANDREW L. RIKER J American Society of Automobile Engineers. WILLIAM. LAWRENCE SAUNDERS American Institute of Mining BENJAMIN BOWDITCH THAYER Engineers. ? JOSEPH WILLIAM RICHARDS American Electrochemical Society. LAWRENCE ADDICKS WILLIAM LE. Roy EMMET American Society of Mechanical Engineers. SPENCER MILLER HENRY ALEXANDER WISE WOOD American Society of Aeronautic ¬ELMER AMBROSE SPERRY Engineers. ?

Jan 10, 1915

The volumes of Transactions, which are published annually, contain the list of officers, rules, etc., the Proceedings, and the papers revised for final publication. (In this revision, after the preliminary publication, authors are permitted to use the largest liberty; and the changes and additions made in papers are sometimes important. It should be borne in mind by those who study or quote a paper in the preliminary edition, that they may not have in that form the ultimate and deliberate expression of the author's views. It should be added, however, that in the majority of cases there are no important changes.) These volumes are for sale as follows, in paper covers:

Jan 1, 1910

The fall meeting of the. Institute of Metals Division will be held in Philadelphia on Sept. 30 to Oct. 2. All meetings will be held in the Ritz-Carlton Hotel, Broad and Walnut Streets, which is also the hotel headquarters. As this meeting is being held in conjunction with the meeting of the American Foundrymen's Association, the members of the Institute will have the privileges of the exhibit of the Foundrymen's Association. This, it is expected, will be one of the largest exhibits made in this country. On Monday evening, Sept. 29, there will be a meeting, in the Ritz-Carlton Hotel, of former officers and members of the Executive Committee of the Institute. It is requested that all officers and Committee members, the present as well as the past, will arrange to be present.

Jan 8, 1919

By O. Mellgren, A. M. Gaudin, P. L. De Bruyn

In the January 1956 issue: TP 4137B. Adsorption of Ethyl Xanthate on Pyrite. By A. M. Gaudin, P. L. de Bruyn, and Olav Mellgren. P. 65. Since P. L. de Bruyn is now a member of the AIME, the word "associate" should be removed in describing his status. The address of the third author, Olav Mellgren, should read: 74-2 Chingola, N. Rhodesia. P. 68, second paragraph, last line: the word "300-fold" should be replaced by "3000-fold." Also in the January 1956 issue: TP 4158B. Energy Transfer by Impact. By R. J. Charles and P. L. de Bruyn. The authors wish to express their disapproval of the omission of the abstract from the article, since they believe that an abstract fulfills a very important function in every paper.

Jan 1, 1957

By Calvin Pierson, R. S. Dean, E. P. Barrett

Wrought iron and steel have been prepared from limonite, hematite, and magnetite ores by gaseous reduction, compacting and squeezing the resulting product at high temperature and finally melting the wrought iron so formed. The structure, analyses, mechanical and magnetic properties of the products are given. It is found that the structure of iron ores is best studied by subjecting them to gaseous reduction and using metallographic technique on the resulting sponge iron. In this way the cell structure of iron ore is clearly shown. The wrought iron made by heating compacted sponge iron to 1450" C., and forging, shows a cell structure inherited from the ore. This cell structure is further preserved in melting and casting the wrought iron. The probable relation of the properties of the materials to this inherited cell structure is discussed.

Jan 1, 1935

The following officers and committee chairmen were elected: Honorary Chairman, Herbert Hoover; Chairman, Elmer A. Sperry, New York; Vice-Chairman and Chair-man of the Executive Committee, John W. Lieb, New York; Vice-Chairman, C. E. Grunsky (Pacific Coast), San Francisco; C. F. Kettering (Middle West), Detroit; Execu-tive Secretary, Maurice Holland; Executive Committee: Gano Dunn, George W. Fuller, Maurice Holland, Frank B. Jewett, John W. Lieb, H. J. McGraw, Calvin W. Rice, W. E. Wickenden, all of New York; Dugald C. Jackson, Cambridge, Mass.; 0. C. Merrill, Washington, D. C.; Charles F. Scott, New Haven, Conn.; Elmer A. Sperry, Brooklyn, N. Y.; Finance Committee. John W. Lieb; Technical Program Committee: D. C. Jackson; Transporta-tion Committee: F. B. Jewett; Entertainment Committee: 0. C. Merrill; Publicity: J. H. McGraw; Promotion and Attendance: George W. Fuller.

Jan 5, 1928

The petition for the formation of a Tulsa Section was granted. The final budget for the year 1917, and the tentative budget for the year 1918, were adopted. The Secretary was instructed to continue to send the Bulletin to all members whose dues have been remitted on account of their being in the war service, but to hold the Transactions and send them on request to the address furnished for the purpose. The issues of the Bulletin were presented to the Federal Fuel Administration, at its request, with the compliments of the Institute. Fifty-nine Members, five Associates, and fifteen Junior Members were elected. The resignation of one member was accepted. The clues of four members who are on active duty at the front were remitted. An extension of time for the payment of clues was granted to four members, upon request.

Jan 2, 1918

By J. A. Reeves

The unit-train for moving mineral raw materials is considered by many railroad men as the most significant contribution toward reducing rail freight costs since the introduction of the diesel locomotive. The idea, which involves assigning railroad equipment to only one haul and keeping the equipment rolling, results in the maximum utilization of equipment. For example, before the unit train was placed in service on coal hauled to one of Mid-Continent Coal and Coke Company's customers, about 900 cars and 9 locomotives were needed to move its coal requirements, compared with 250 cars and 6 locomotives currently used. If unit-train economics are to be achieved, coal companies cannot use railroad cars as small storage bins on wheels to accumulate their coal in train-load shipments, instead, these companies must build large bins which incorporate facilities for the rapid loading of railroad cars in a minimum length of time.

Jan 1, 1970

By Henry H. Thomas

In Tasmania a tailrace tunnel to handle water discharged from a turbine generator has been successfully driven by a machine tunneling method similar to that described in the July 1962 issue of Civil Engineering. The Hydro-Electric Commission, Tasmania, is constructing a high- head (2750 ft) power project that will utilize the storage in the Great Lake (1,150,000 acre-ft) at an elevation of 3380 ft. The underground power station will house six vertical shaft turbo-generators, each rated at 50,000 kw. The tailrace tunnel, 16 ft diam and 14,600 ft long, was driven through a reasonably homogeneous hard mudstone. It was decided to excavate this mechanically in the hope of saving some money on excavation and a considerable sum on the ultimate lining of the tunnel. Mechanical engineers from Tasmania worked with the firm of James S. Robbins and Associates of Seattle, Wash., which designed and supplied the "mole."

Jan 4, 1963

As a result of Engineering Council's request to the Director of the Census, the National Service Committee has been successful in effecting a reclassification of engineers so that all technical men will be listed as such and they will be separate and distinct from the non-technical engi-neers. Thus, the next census will bring an enumeration of all technical engineers together as one unit under the main headings of civil, mech-anical, electrical and raining; architects also will be enumerated separately. This will enable the engineering profession, the Government or any other interested organization to know exactly how many technical men there are in the United States and in each state. The enumeration will also include non-technical engineers, except that there will be no such heading and in order to get the totals of non-technical men all of the various grades of this classification would have to be sorted out and added.

Jan 12, 1919

By Edwin Chance

EDWARD H. Coxe, Knoxville, Tenn. (communication to the Secretary*).-Mr. Chance has omitted to mention one very important use for the chemist in connection with the preparation of coal, and that is in connection with coal washing. Efficient coal washing, and especially of the finer sizes, can be accomplished only under the supervision of a chemist, as the proper regulation of the washer can only be had by frequent sampling and analysis of the raw and washed product and the refuse, say at least semi-weekly; and only in this way can a check be kept on the quality of the product and the amount of good coal wasted in the refuse. In large operations, frequently enough coal can be saved from going to the refuse pile to more than pay the salary of the chemist.

Jan 12, 1916

By Ken Sublette

The mining industry has been a leader in the application of ultrasonic level monitoring systems, utilizing the "sonar-in-air" concept for the accurate inventorying of material not only as an end within itself, but going on to activate alarms, turn off feeders, operate tripper systems, and totalize the inventory in numerous bins as well as other more sophisticated applications. The virtues of ultrasonic level monitoring are no doubt appreciated by most users. However, to be of maximum service to the expanding mining industry, the manufacturer must be fair in pointing out ultrasonic's limitations as well as its virtues. The limitations can be surmounted with new technology and through a proper understanding of the principles of operation and application.

Jan 6, 1974

The saying that a "prophet" is without honor in his own country does not always hold true, as is shown by the following from one of the local papers, which appeared under the above heading: "Edwin Ludlow, for more than seven-years vice-president of the Le-high Coal.& Navigation Co., with headquarters in Lansford, has resigned, to take effect July 1, when he will take up his residence in New York and engage as a consulting engineer. Mr. Ludlow, during the incumbency of his present position, has demonstrated his efficiency as an engineer and general manager in many directions, notable among which are the almost perfect methods in practice in the inside workings of the several operations under his charge and the erection of the most complete, most practical and most commodious breakers for the preparation of the mine product for market. In addition, his relations with organized labor have been cordial and his dealings with its representatives have been invariably based upon the principle of fair play."

Jan 7, 1919