SERIES OF RADIOGRAPHS SHOWING MOTIONS OF THE STOMACH DURING DIGESTION] SCIENTIFIC AND EDUCATIONAL,--MICROCINEMATOGRAPH FILMS AND ROENTGENCINEMATOGRAPHY Though the work of the cinematograph is only in its infancy, the range of its possibilities seems almost boundless. When the target-practice pictures mentioned above were taken, it was said that some of the pictures showed a twelve-inch shell actually in flight. The writer saw these pictures, and while he did not see this point illustrated, possibly due to the breaking and imperfect repairing of the film, the statement can be credited, as it is feasible to see this with the naked eye if the observer is well in the line of flight. Another remarkable instance which illustrates the capabilities and speed of the lens has been cited in the case of a picture which shows a rifle-bullet on the inside of a soap-bubble, from which it was learned that the bubble does not break until the bullet leaves the opposite side from which it entered. [Illustration: Produced by Thomas A. Edison, Inc. SCENE FROM “WASHINGTON CROSSING THE DELAWARE”] The moving-picture is more and more being used for educational and scientific purposes. It has been used for recruiting, and pictures were taken of the convention at Chicago for use in the national campaign. Pictures showing the methods of teaching in New York schools have been shown in many parts of the country. Dr. William M. Davidson, superintendent of public schools in the District of Columbia, is strongly advocating the passage of a bill now pending before Congress to use the schools as social centers for exhibiting educational moving-pictures. Likewise Superintendent Maxwell is urging their use in the New York public schools. Mr. Edison has very recently been quoted as saying: “I intend to do away with books in the school; that is, I mean to try to do away with school-books. When we get the moving-pictures in the school, the child will be so interested that he will hurry to get there before the bell rings, because it’s the natural way to teach, through the eye. I have half a dozen fellows writing scenari now on A and B.” An eight-year course is being planned which it is expected will be started in Orange, New Jersey, in about a year.