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SYNOPSES TRANSACTIONS No. 15 25 one and to show that the spherically corrected condenser is a more efficient lens in projecting a beam of light through an aper- ture, p. 79 A New Sensitometer for the Determination of Exposure in Positive Printing LOYD A. JONES AND J. I. CRABTREE In order to eliminate the personal equation in selecting the proper exposure time for printing, a sensitometer is employed for con- veniently and simply making trial prints using exposures corre- sponding to the various light change steps of the printing machine. p. 89 Printing Exposure and Density in Motion Picture Positives LOYD A. JONES Any simple method whereby the correct printing time for the production of satisfactory prints from motion picture negatives may be predetermined without the necessity of making trial prints would be of considerable value in the printing laboratory. This paper presents the results of a preliminary survey of a statistical character and yields information relative to the characteristics of motion picture positives accepted as of satis- factory quality by the practical worker. p. 102 Motion Picture Work in the Philippine Islands O. S. COLE An interesting historical account of the showing of motion pic- tures in the Philippines, of the local problems of projection, and of the whims of the Filipino audience. p. 112 The Alabama Polytechnic Institute ALBERT L. THOMAS A brief discussion of the part played by this University and its graduates in the motion picture industry. The University boasts an accredited course in Motion Picture Projection, p. 116 Motion Pictures in the U. S. Army ROGER M. HILL An outline of the Army Motion Picture Service and of the pro- jection equipment used. p. 119 Motion Picture Activities of the Canadian Government R. S. PECK Canada uses motion pictures in an extensive advertising program, sponsored by the Publicity Bureau of the Department of Trade and Commerce. One reel series, called the " Seeing Canada" films are produced which give information concerning Canada