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October, 1929
255
tion picture projectors. The slides or films used with each type are also given consideration, as well as the two kinds of screens in use — reflection and translucent.
The handbook also includes a projection chart, cost estimates and glossary of terms used in connection with projection, which should be of additional aid to the schoolman.
The publication can be secured for 25 cents from James C. Muir and Company, Philadelphia, Pa.
New Bell & Howell Laboratory Completed The new engineering laboratory erected in Chicago by the Bell and Howell Company has been completed at a cost of a half-million dollars. The new building, occupying 35,000 square
feet of floor space, provides accommodations for four hundred engineers and technicians and is equipped with precision machinery and apparatus for every kind of mechanical test.
The engineering personnel will be under the direction of Mr. A. S. Howell, chief engineer, and will devote its time to new developments in the mechanics of the motion picture industry, whether originated within the company's organization, or submitted to it by individuals outside.
Several projects of the utmost importance to the future of the movie industry have been under way in the Bell and Howell laboratories for some time, among them all phases of the "talkies" and "three-dimensional" movies.
Amateur Film Making
(Concluded from page 252)
With the newer Kodacolor attachments two neutral density filters are supplied. One of these is used where the black and white exposure would be fl6 and the other where f22 would be required.
Lighting has much to do with color photography. A brilliant glary light kills color on shiny objects because of their sheen. A soft light, yet one giving sufficient exposure is better in such cases.
It should also be borne in mind that for color photography flat lighting is best. Composition should depend on masses of color rather than on highlights and shadows as in the case of black and white photography.
WHAT IS THE SECRET?
Miss Elinor G. Price, a grade school teacher i i one of the Montclair, N. J., Public Schools, has had remarkable success with her classes during t!ie past two years. The children work hard to reach her grade, for those already in enthusiastically relate how^ interesting her lessons are. There is no yawning and clock-watching in Miss Price's classes, no lagging behind and disliking school, and, at the close of the year, all her pupils pass on with flying colors. There are no repeaters in Miss Price's group.
Others marvel and ask, "What is the Secret of Her Success?"
The answer is given in the illustration — she uses Visual Education with the assistance of a Spencer Combination Classroom Lantern, Model DC, which was introduced about two years ago. This enables her
to illustrate the lessons w^ith either glass slides or film-slides and insures the best possible results on the screen. It also gives her many special convenient operating features not found on any other lantern.
Try this out in your class for a short time and note the vast improvement in the w^ork of your own pupils. Detailed data upon request.
SPENCER LENS COMPANY
Newr York
BUFFALO, N. Chicago San Era .icisco
Boston
Washington