Motion picture projection : an elementary text book ([1922])

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torcscc the role it was to play. For on it depends the pro* \ ing pictures all over the habitable world. v appears also in the work. The operator no longc ' turn the wearying crank for hours at a tin: . does it for him. The projection of motion pictures is a process involv- thc perfection of mechanics, of optics, and of tncity. Re ; all this the author lays down his work and *hed, when it is really but begun. He has * best to present the wonderful story of motion projection from the aspect of its practical opera- Jest enough to realize his relation to the immensity of the subject; he is sanguine enough to hope that the book will please the reader. The sincere thanks of the author are due to such rt, as Herbert Griffin of the Power H. Hallberg of the United Theatre pmcnt Company and William Francke of the Pre- liine Co., Inc. rm courtesy and assistance from the best minds in the profession have made the labor a pleasure.