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The Year Book of the Institute will be mailed with, the May Bulletin. Its membership lists, both alphabetic and geographic, are corrected to Mar. 1, and the lists of officers and committees are corrected to date.

Jan 4, 1919

By Rikuro Otsuka

TITANIUM is attacked slowly by hydrochloric acid," and corrosion rates decrease with time of exposure.' This behavior is due to the formation

Jan 1, 1958

Jan 1, 1903

United Engineering Trustees, Inc. W. D. B. HOTTER, JR., '44 A. L. QUENEAU, '45 ALBERT ROBERTS, '43 The Engineering Foundation GEORGE D. BARRON, '44 F. F. COLCORD, '46 A. L. QUENEAU, '45

Jan 1, 1942

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C. 0. FAIRCHILD, Washington, D. C. (written discussion*).-Referring to the paragraph entitled "Effect of change in temperature of absorbing glass on its transmission," Dr. Foote and the writer have been using, since

Jan 11, 1919

Jan 1, 1935

Jan 1, 1925

Jan 1, 1889

Jan 1, 1932

H. M. BOYLSTON E. B. YOUNG SECRETARY-TREASURER OF SECRETARY-TREASURER OF BOSTON SECTION MONTANA SECTION R. M. KEENEY F. G. MOSES SECRETARY-TREASURER OF SECRETARY-TREASURER OF COLORADO SECTION UTAH SECTION

Jan 7, 1919

Jan 1, 1966

Jan 1, 1969

A Report Of Current Activity In The Industry

Jan 6, 1951

Minnesota J. A. MACKILLICAN, Chairman W. W. J. CROZE, Vice-chairman T. L. JOSEPH, Vice-chairman S. E. ATKINS, Secretary-Treasurer, Alworth Bldg., Duluth, Minn. Montana MURL H. GIDEL, Chairman ALBERT E. WIGGIN, Vice-chairman ALEXANDER M. MUDONALD, Secretary-Treasurer, 101 W. Granite St. Butte, Mont. GEORGE G. GRISWOLD FRANCIS A. THOMSON

Jan 1, 1929

Jan 1, 1927

Jan 1, 1918