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142 THOMPSON
of transparent parts placed upon the face of the tube. Another innovation is the use of a pointer on the face of the tube to attract attention to particular portions of the picture.
There is evidence that cathode-ray-tube scanners will find acceptance for many applications where simplified sources of test and program material are desired.
ACKNOWLEDGMENT
Acknowledgment is due the Research Division of the Allen B. DuMont Laboratories for development of the cathode-ray tube, to Mr. A. J. Baracket for supervision of initial circuit development, and to Mr. A. L. Olson for slide-changer and scanning-generator design.
REFERENCES
(1) V. K. Zworykin and G. A. Morton, "Television," Section 8.3, John Wiley and Sons, New York, N. Y., 1940.
(2) G. C. Sziklai, R. C. Ballard, and A. C. Schroeder, "Experimental simultaneous color television system, Part II — Pickup equipment," Proc. I.R.E., vol. 35, pp. 862-871; September, 1947.
FORTY-ONE YEARS AGO
Atlantic City. — Managers of local playhouses will be asked to have a hymn sung at each Sunday performance as a compromise with members of the local W.C.T.U., which threatened to close the moving picture shows given Sunday evenings.
A special committee of women that visited the shows brought back a report that it had discovered nothing objectionable in the performances, but recommended that hymns take the place of "illustrated songs," with the audience taking part.
— The Moving Picture World, January 25, 1908
Saloon Men Fight Shows
Tamaqua, Pa. April 27. — The saloon proprietors are now agitating against the moving picture shows. These attractions, the saloon men say, are taking the crowds from their places of business.
Throughout this section there is not a town having a population of over 3000 that does not boast of at least two of these shows, while some have as high as four, this town being one of the latter class. All these shows are well patronized. Men and boys who would otherwise frequent the saloons go there, making the rounds of the shows each evening.
The saloons in some of the towns are endeavoring to have the shows taxed in the same manner as circuses and opera houses.
—Moving Picture World, May 9, 1908