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TRANSACTIONS
OF THE
1
SOCIETY OF
MOTION PICTURE
ENGINEERS
CONTENTS
Page
Officers, Committees, Membership and Constitution 3-17
President's Address 18
Motion Pictures in Education. By E. L. Crandall 22
High Speed Motion Pictures, without especially designed camera. By
J. H. McNabb 32
'Cine Light. By Douglas E. Brown 40
Mazda Lamps for Projection. By J. A. Summers 54
The Phonofilm. By Dr. Lee DeForest 61
Radio Photographs, Movies and Vision. By C. Francis Jenkins 78
Photographic Recording and Photoelectric Reproduction of Sound. By
Dr. J. Tykocinski-Tykociner 90
Problems of the Film Finishing Laboratory. By W. R. Rothacker and
Joseph Aller 120
Testing Motion Picture Machines for Naval Service. By Lieut. Com.
C. S. Gillette 126
Heat Protection of Motion Picture Film. By E. D. Tillyer 137
Efficiency in Carbon Arc Projection. By W. R. Mott and W. C. Kunzmann 143
Uniform Development of Film. By F. F. Renwick 159
Development of Motion Picture Film by Reel and Tank Systems. By
J. I. Crabtree : 163
A Split Aspheric Condensing Lens. By Frank Benford 212
Symposium on Portable Projectors
Beacon Projector Co 225
The Discrola. C. Francis Jenkins 234
The Campro. A. R. DeTartas 239
Cine Kodak and Kodascope. C. E. K. Mees 246
Pathescope. Willard B. Cook 266
Spirograph. Charles Urban 259
A. Sub -Standard Film. By C. E. K. Mees 252
The Motion Picture a Practical Feature of the Home. By A. F. Victor . . 264
Reports of Committees 267-323
SPECIAL ANNOUNCEMENTS 324
Index of Papers by Subject and Author, 1916 to 1923 1
Advertising Section 325
I
Number Sixteen
MEETING OF MAY 7-8-9-10 ATLANTIC CITY, N. J.
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