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M « HULL'S 67
SCIENCE
GENERAL
Reels ACOUSTICS — Elements of hearing and changes of sound
velocity, refraction, etc 1
CHEMISTRY OF COMBUSTION — A technical film of
great scientific interest 1
ENERGY — Power and work illustrated 1
EVOLUTION — The theory illustrated step by step. 3
FOUR SEASONS — Here we have a comprehensive study of the conditions which prevail in each of the four seasons. A series which is illuminating to the student of nature and exceptional for the beauty of its presentation 4
Each of the above reels may be rented separately, as follows:
Spring — 1
Summer — 1
Autumn — 1
Winter — , 1
LIFE — A presentation for biological and physiological training, demonstrating the development of plants and animal life from the eqq 1
POWER OF THE CLOUDS — The transition of power from
clouds to machine 1
SOUND ACOUSTICS — How to improve transmission,
eliminate echoes, etc %
SUNSHINE — The power behind the sunbeam and what it
means to civilization 2
SUNSHINE — A shorter and slightly different presentation
to the above 1
THROUGH THE KALEIDOSCOPE — A pictorial presentation of the scientific invention of Sir Donald Brewster 1
WATER — A film lecture 1
WORK AND ENERGY — An exposition of applied force 1
GEOLOGY AND PHYSIOGRAPHY
CYCLE OF EROSION — A study of individual streams and broad regions; the progressive development of valleys and regions through the various stages of the erosion cycle 1
EARTH — A comprehensive lesson of the earth and its sate
lites 1
EARTHQUAKES — Nature's cause and effects. Types of wave-motion, methods of recording and interpreting seismic phenomena, distinguishing volcanic from the tectonic earthquake 1
GEOLOGY — A 'Smith College production. %
GLACIERS — A study of existing glaciers, their classification, origin, motion and characteristics, the effects of glaciers on the land surface, both from the stand point of erosion and deposits 1
GLACIERS' SECRET — How the glacier is formed 1
OUR EARTH — A terrestial study 1
SCULPTURE OF THE LAND BY RIVERS — An erosion study showing the effect of moving waters on the surface of the earth 1
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