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Jan 1, 1938

Jan 1, 1908

CONTENTS SECTION I Page Page War Notice v Personal xv St. Louis Meeting vi Employment : : xvii Nominations for Officers ix Local Section News xviii Burr A. Robinson x Meetings of Societies :.: xxiv New Collective Index of Transac- Library xxv tions xi Membership : xxxii Alabama Technical Association... xi Institute Committees xlix Proceedings, Meeting of Board of Officers and Directors lvi Directors xi Members of the Institute in Mili- tary Service xiii

Jan 8, 1917

Jan 1, 1887

By R. A. Kinzie

In a conventional cement plant, the drying and heating of the raw material takes place in the upper section of a cylindrical kiln where the heat exchange is poor. In a Lepol kiln this part of the process is carried out on a traveling grate where the heat exchange is efficient. The increase in fuel economy justifies the greater complexity of the installation.

Jan 2, 1950

By Edward K. Landis

Our Transactions contain so many suggestions of apparently trivial, yet really important, contrivances for the saving of time and

Jan 1, 1893

New Products Equipment

Jan 2, 1953

Jan 1, 1944

Page Foreword—H. Foster Bain........................ 9 Letter of Transmittal—F. Julius Fohs...................11

Jan 1, 1927

By R. Roberge, H. Herman

Jan 1, 1969

By John D. Clark

ONE'S lifetime does not usually offer the opportunity to observe and be a part of the commercial development of an entirely new material. Petalite has been known for over a century, but at first it was presumed rare. However, it was found to be so abundant that it has become a new and extremely useful industrial tool.

Jan 10, 1950

Jan 1, 1943

Jan 1, 1933

By W. M. McKewan

Jan 1, 1961

By A. E. Hall

The paper gives a general solution of ventilation net- works where densities play an important role and fans operating at different densities from branch densities are considered. Both the physics and computing techniques needed to deal with these networks are discussed.

Jan 1, 1977

By John Griffen

Methods of coal preparation in England, including usage of American units such as the Chance sand flotation process and Denver flotation cells, are compared with methods used in the United States. Problems of the coal industry in Holland are summarized.

Jan 2, 1951

Howe Memorial Lecture The Howe Memorial Lecture, in memory of Henry Marion Howe, Past President of the Institute, was authorized in April, 1923, as an annual address to be delivered by invitation under the auspices of the Institute by an individual of recognized and outstanding attainment in the science and -practice of iron and steel metallurgy- or-metallography, chosen -by-the Board-of Directors upon recommendation of the Iron and Steel Division. The following were the Howe lectures and lecturers for the years indicated 1924 What is Steel'., By Albert Sauveur.

Jan 1, 1938

The fourth National Exposition of Chemical Industries will be held in the Grand Central Palace, New York, during the week of Sept. 23, 1918. Dr. Bacon, of the advisory committee, is now head of the Chemical Warfare Section of the National Army, and a member of General Pershing's staff. The coming Exposition will be the largest ever held, and it will be necessary to use four floors of the Grand Central Palace. The exposition is a war-time necessity, and regarding it as such, each exhibitor is planning his exhibit so that it will be of. the greatest benefit to the country.

Jan 8, 1918

Jan 1, 1903

By R. H. Terhune

THE enormous production of pig-iron, together with the many difficult and interesting problems with which its manufacture is fraught, has secured to this industry the exclusive attention of scientists with reference to the chemistry of iron, while some of the minor departments of its metallurgy have suffered neglect. Particularly is

Jan 1, 1873