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CLASS 3 — Popular Science, Useful Arts and Natural History 49
REEL NO, TITLE PRODUCER
black-snake which destroys rats, while we pamper the cat which not only fails to do that, but kills many of our good friends, the insect-eating birds. An excellent subject. 434 feet standard length — on same reel zvMi 7U1U, Bobby Bump's Goatmobile
Rental $1.25
3009 Code FABUR Frogland Frolics Post
The story of a little girl who dreamed she was in Frogland. The frogs invited her to a frolic and entertained her with the most wonderful performance imaginable. Daring frogs flew aeroplanes, drove racing cars and made high dives for the amusement and entertainment of an audience made up of the little girl and the frogs. Very interesting, especially so to children. 377 feet standard length — on same reel with 7011, Bobby Bumps' Pointer Pup
Rental $1.25
3010 Code FACA Our Mechanical Servant Bray
Illustrating by animated drawings the theory and practice of the operation of the modern hydraulic elevator in office buildings, so clearly that even a child can understand. Very few people have an idea of just how the hydrauHc passenger elevator is operated. 371 feet standard length — on same reel with 7012, Bobby Bumps Goes Fishing
Rental $1.25
3011 Code FACE How the Telephone Talks Bray
Sound waves are shown to be very similar to water waves. A simple animated drawing shows how these sound waves are converted into electric waves, or impulses, by the vibration of the diaphragm through the medium of carbon granules. The flow of electricity and the physical results are clearly shown.
Then at the receiver end, the conversion of the electric waves again into sound waves through an electro magnet in turn operating another disc is clearly shown.
A very interesting and instructive description of one of our best known devices. 374 feet standard length — on same reel tvith 7013, Bobby Bumps, Detective
Rental $1.25
3012 Code FACI The Science of Weather Bray
Prediction
Weather reports nowadays are as common as newspapers and the little notice at the top of the front sheet is not very prepossessing, but to put accurate information through every morning keeps the weather man on the job night and day. He must understand much complicated apparatus and be able to read various meters. From many widely located sources he gathers the atmospheric data by which he is able to forecast the next day's weather.
342 feet standard length — on same reel zmth 7014, Surprise Rental $1.25
Take regular weekly service