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48
CLASS 3
-P(
Dpular
Science,
Useful Arts
and Natural History
KEEL NC
».
TITLE
PRODUCER
3004 Code FABU An Animal Engineer Bray
The beaver's industriousness is proverbial, and his activity continuous. With his sharp chisel-like teeth he cuts down trees and then cuts them into proper lengths to build his nest or house. For protection and secrecy he wants the entrance under water, and in order to raise the water level he builds dams across streams so the proper level will be attained. He works either in, under or out of water. He uses his head too, and cuts the trees so that they fall towards the water. Logs, twigs, mud, sod and stones are used to make the daiiis and houses strong and tight. 276 feet standard length — on same reel with 7029, Felix Gets Left
Rental $1.25
3005 Code FABAR Sea Lions of the South Pacific Bray
A large herd is shown on the rockbound coasts of Peru, The difficulty of landing in order to photograph them is graphically shown, together with herds of the animals both afloat and ashore.
242 feet standard length — on same reel with 7007, The Puzzle
Rental $1.25 •
3006 Code FABER The Astronomer's Workshop Bray
Illustrating the modern observatory as exemplified at Weslyan College, showing mechanism by which the equatorial telescope is operated and photographs made therewith for subsequent study and reference. An excellent photograph of the moon is shown and also a very accurate clock for recording short intervals of time known as the Chronograph.
188 feet standard length — on same reel with 7008, The Hypnotist
Rental $1.25
3007 Code FABIR Origin of Coal Bray Countless centuries ago large portions of the earth's surface were swamps.
Tangled vegetation grew in these swamps and fell where it stood. Under the pressure of the accumulated mass, coal was formed. This wonderful process so vital to our present day civilization, which extended over many years, is depicted by use of animated drawings, through its various stages from the luxuriant vegetation of prehistoric ages to the anthracite coal of today.
259 feet standard length — on same reel with 7009, Birthday Rental $1.25
3008 Code FABOR Our Animal Friends and Foes Bray
Dr. R. L. Ditmars shows some of the insect pests such as the apple worms which do over $100,000,000 damage per year ; grass-hoppers which do $53,000,000 and the weevil which does $40,000,000 damage and says that our annual loss due to insect pests is $420,100,000. Birds destroy large numbers of these pests and thus are our friends. Rats are so destructive that they each cost ten cents per day. The black-snake catches rats and is our friend.
Then he shows the farm cat, which is supposed to catch rats, but which finds it easier to kill birds, and draws the inference that it is poor judgment to kill the
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