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Among the Magazines Conducted by N. L. G. PHE ultimate purpose of this department is to supply in readable •*- form, and quite informally, a digest of the literature on the subject as it appears from month to month in various periodicals. The busy reader may find here as much as his time will allow him to cover; the curious or scholarly reader can use the department as a starting point for wider ranging, with marked economy of his time. he Use of Motion Pictures in Physics Teaching by Harvey B. Lemon n School Science and Mathematics for March £y"""V F the various methods at pres- I 1 ent most effective in Physics teaching, the most important re probably in the following order: (1) aboratory work, (2) class-room recita- on and problem-solving, (3) demon- ration lectures." After explaining why the third method as not been greatly used in recent ars at the University of Chicago, Dr. emon declares that proper motion pic- ires can do much to supply this demon- ration feature. A test of the idea has een made, with two groups of 75 stu- nts each. The first group was shown one thou- ind feet of film on "Electrostatics," and stened to a demonstration lecture on Magnetism." The second group had a emonstration lecture on "Electrosta- |cs," and viewed a 1,000-foot film on Magnetism." Both films and lectures Dvered exactly the same material. The 150 students were then given a omprehensive examination, the papers ere marked by four different individuals idependently, and the marks averaged. he average grade attained after the emonstration lecture was 72 per cent; fter the film, 67 per cent. "The spoken lecture was allowed one our for presentation. The film was ntirely unsupported by any comment nd occupied the normal time for pro- 141 jecting 1,000 feet, which is 20 minutes. We therefore feel quite certain that if the motion picture film is placed in the hands of competent, informed teachers, preceded by some comment and followed by questions and discussion, the numeri- cal grades above might have appeared in inverted order. As a result of these tests, the motion picture film for the present is established in our laboratory as one of the recognized means of under- graduate instruction." Dr. Lemon is careful to specify that the film is used only for the one type of science instruction, the demonstration lecture, and adds: "It is inconceivable that films can ever take the place of laboratory or classroom work." Dark Days on the London Stage by Hugh Walpole in Vanity Fair for May WE CITE this article for the sake of quoting a single paragraph from this eminent man of letters regarding the much maligned motion pic- ture. Mr. Walpole laments the dearth of plays and personalities on the English stage today as compared with twenty years ago, when Ellen Terry, Tree, Wyndham, Hare, Alexander, Maude and the rest ruled the boards; when dramatic offerings included such masterpieces as The Second Mrs. Tanqueray, The Liars, Gay Lord Quex, Arms and the Man; and such staging as Tree gave to Herod and Ulysses and The Darling of the Gods, or Alexander to Paolo and Francesca.