TERMS AND PRIVILEGES OF MEMBERSHIP The members of the Institute are divided into the following classes, viz.: Resident Members, Stockholders, Life Members, Permanent Members, Non-resident and Associate Members. Any one interested in the purposes and objects of the Institute and expressing a willingness to further the same may become a member when proposed by a member in good standing and elected by the Board of Managers. Terms.-Resident members pay Fifteen Dollars each year. The payment of Two Hundred Dollars in any one year secures Life Membership, with exemption from annual dues. Stock.-Second-class stockholders pay an annual tax of Twelve Dollars per share, and the holder of one share is entitled by such payment to the privileges of membership. Privileges. Each contributing member (including non-residents) and adult holder of second-class stock is entitled to participate in the meetings of the Institute, to use the Library and Reading Room, to vote at the Annual Election for officers, to receive tickets to the lectures for himself and friend, to attend the Section meetings and to receive one copy of the JOURNAL free of charge, except associate members, who may not take part in elections. Permanent Members.-The Board of Managers may grant to any one who shall in any one year contribute to the Institute the sum of One Thousand Dollars a permanent membership, transferable by will or otherwise. Non-resident Members.-Newly elected members residing permanently. at a distance of twenty-five miles or more from Philadelphia may be enrolled as Non-resident Members, and are required to pay an entrance fee of Five Dollars, and Five Dollars annually. Non-resident Life Membership, $75.00. Contributing members, if eligible, under the non-resident clause, on making request therefor, may be transferred to the non-resident class by vote of the Board of Managers, and are required to pay Five Dollars annually. Associate Members.-Associate members are accorded all the privileges of the Institute, except the right to vote or hold office, upon the payment of annual dues of Five Dollars. This class of membership is limited to persons between the ages of seventeen and twenty-five years. Upon reaching the age limit they become eligible to the other classes of membership. Resignations must be made in writing, and dues must be paid to the date of resignation. THE JOHN SCOTT LEGACY MEDAL AND PREMIUM. THOMAS BILYEU, of Hillsboro, Oregon, for his inventions embodied in the International Money Machine. CONRAD D'HUC DRESSLER, of Great Marlow, England, for the Dressler Tunnel Kiln. LUCIEN I. YEOMANS, of Chicago, Ill., for his Method of Machine Construction. ELLIOTT CRESSON MEDAL RECOMMENDATIONS. BYRON E. ELDRED, of New York, N. Y., for the Low Expansion Leading-In Wire for Incandescent Electric Lamps. REYNOLD JANNEY, of New York, N. Y., and HARVEY D. WILLIAMS, of Wallingford, Conn., for their inventions embodied in the Waterbury Hydraulic Speed Gear. ISAAC NEWTON LEWIS, of Montclair, N. J., for his Machine Gun. JOHN SCOTT RECOMMENDATIONS. FRANK P. FAHY, of New York, N. Y., for the Fahy Permeameter. ERNEST J. SWEETLAND, of Upper Montclair, N. J., for the Sweetland Filter Press. TERMS AND PRIVILEGES OF MEMBERSHIP The members of the Institute are divided into the following classes, viz.: Resident Members, Stockholders, Life Members, Permanent Members, Non-resident and Associate Members. Any one interested in the purposes and objects of the Institute and expressing a willingness to further the same may become a member when proposed by a member in good standing and elected by the Board of Managers. Terms.-Resident members pay Fifteen Dollars each year. The payment of Two Hundred Dollars in any one year secures Life Membership, with exemption from annual dues. Stock.-Second-class stockholders pay an annual tax of Twelve Dollars per share, and the holder of one share is entitled by such payment to the privileges of membership. Privileges. Each contributing member (including non-residents) and adult holder of second-class stock is entitled to participate in the meetings of the Institute, to use the Library and Reading Room, to vote at the Annual Election for officers, to receive tickets to the lectures for himself and friend, to attend the Section meetings and to receive one copy of the JOURNAL free of charge, except associate members, who may not take part in elections. Permanent Members.-The Board of Managers may grant to any one who shall in any one year contribute to the Institute the sum of One Thousand Dollars a permanent membership, transferable by will or otherwise. Non-resident Members.-Newly elected members residing permanently at a distance of twenty-five miles or more from Philadelphia may be enrolled as Non-resident Members, and are required to pay an entrance fee of Five Dollars, and Five Dollars annually. Non-resident Life Membership, $75.00. Contributing members, if eligible, under the non-resident clause, on making request therefor, may be transferred to the non-resident class by vote of the Board of Managers, and are required to pay Five Dollars annually. Associate Members.-Associate members are accorded all the privileges of the Institute, except the right to vote or hold office, upon the payment of annual dues of Five Dollars. This class of membership is limited to persons between the ages of seventeen and twenty-five years. Upon reaching the age limit they become eligible to the other classes of membership. Resignations must be made in writing, and dues must be paid to the date of resignation. MEETINGS AND LECTURES 1918-1919 October 3, 1918-"The Vapor Tensions of the Metals." Professor of Metallurgy, Lehigh University, Bethlehem, Pa. The lecture will discuss the scanty data which exist concerning the boiling points of the metals and the tension of their vapors at high temperatures and also at low temperatures, in the liquid state and in the solid state, down to ordinary temperatures. The physical analogies to the vapor tensions of other substances will be utilized in this discussion. The usefulness of this information in metallurgy and chemistry, and in various uses of the metals, will be discussed and illustrated. October 16, 1918-"Shipbuilding Analysis." BY HOLLIS GODFREY, SC.D., ENG.D., LL.D., D.C.L., F.R.G.S., President, Drexel Institute, Philadelphia, Pennsylvania. This paper is the first publication of study in Applied Science and Industry, which has been conducted by the author with the assistance of L. L. Biddle, A.B., aided by helpful criticism from Thomas Bowes, M.E., and from Professor George Owen, B.S. It proposes a method of complete analysis for shipbuilding, based throughout on an analogy with chemical analysis, both qualitative and quantitative, doing the completed ship as the chemist treats the complete molecule. It considers the various assembled sections of the ship as the ship atoms which compose the ship molecules and uses the operation cycles which unite to make the assemblies as ship electrons, forming ship atoms. Lantern slides will show the development of the theory through numerous photographs taken in shipyards for purposes of illustration and test. The development of the work will, also, be illustrated by charts. It is the belie! of the author that the work here presented makes possible a material shortening of the time now taken for ship construction and may also prove of importance in the education of shipyard workers. The work is recognized to be in its formation stage, and constructive criticism will be welcome. October 31, 1918-"Samuel Pierpont Langley, Pioneer in Practical Aviation." BY HENRY LEFFMANN. Professor Langley announced in 1891 the results of experiments made with small aeroplanes, driven by twisted rubber bands, and for many years continued his investigations, finally developing a steam-driven machine of considerable size which made several flights. He insisted that the successful flying machine can only be one heavier than air-that is, not dependent on the balloon principle-and modern experience has confirmed this view. The lecture will show in outline the evolution of the aeroplane from Langley's original form, and will be liberally illustrated with lantern slides. Meeting conducted by the Alumni Association of the School. November 7, 1918-"The Power Company." BY WILLIAM C. L. EGLIN, Chief Engineer, The Philadelphia Electric Co., Philadelphia, Pa. This paper is a carefully-prepared historical résumé, in a semi-technical form, showing graphically the development of the electric lighting and power industry from its inception to the present large systems supplying energy to operate a great variety of manufacturing establishments. The enormous growth of these power loads, and especially at this time, of those included in the supplying of shipyards, munitions plants and other war industries, gives to the designation "The Power Company a meaning and importance that did not exist in the earlier development of the generation and transmission of electrical energy. The subject has previously been presented by the author in a lecture before the undergraduates pursuing technical courses at Yale and Princeton Universities; his aim being to point out to such students all over the country (and thereby assist them in an intelligent selection of their life-work) the exceptional opportunities afforded by the Power Companies to the technicallytrained man. Illustrated. Joint meeting with the Philadelphia Section, American Institute of Electrical Engineers. November 20, 1918—“Modern Applications of Photography." BY ALFRED B. HITCHINS, PH.D., Director of Ansco Company's Research Laboratory, Binghamton, New York. This lecture will deal with the present position of photography in Science, Industry and Research Work. Specific Applications of Photography to Spectroscopy. Photo-micrography, X-rays, Astronomy, Bacteriology, Medicine, Aerial Photography and other subjects will be discussed. A review of color correct photography and the direct processes of color photography will be given. December 5, 1918-"Chemistry in Old Philadelphia.” BY EDGAR F. SMITH, PH.D., LL.D. Provost, University of Pennsylvania, In this lecture the work of twelve pioneers in chemistry will be considered. The effort will be made to give a sketch of each individual's life, including his contributions in science, to give a picture of Chemistry in this State from the middle of 1700 to about the same period in 1800, and also to call attention to the early American text-books on Chemistry which were probably studied by these early fathers of the science in our City. Joint meeting with the Philadelphia Section, American Chemical Society. |