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Film Roll Department
ORNITHOLOGY
(SPENCER)
Birds of the Orchard and
Woodland. Ciloration of Birds. Distribution of Some Nesting
Birds— Part I. l')istrihiitiQn of Some Nesting
Birds— Part II. How to Attract Birds. Migration of Birds. Structure and Bill. Wings and Feet of Birds. Young of Birds.
S:ngle Film, with manual $2.00
nature; stories
(SPENCER) The Burrowing Owl. The Motmtain Beaver. The ISeaver. Yellow-footed Marmot. The Jack Rabbit. Some Northern Desert NeighThe Rocky Mountain Sheep. bors. Single Film, with manual $2.00
FOREST CONSERVATION
(SPENCER) Forestry. The Life of a Tree. Forest Conservation. Manur.l Training and Forestry. Enemies of the Forest. Propagation of Plants. Forestry in Geography. Forestry and Nature Study. Friends of the Trees. Our Forests and What They Forest Botany. Mean to Us. Single Film, with manual $2.00
FOREST SERIES
(S. V. E. PICTUROLS) (Facts About Our Forests — Roll I (Forest Types of Eastern I United States). Facts About Our Forests — Roll II (Forest Types of Western
United States). Facts Altout Our Forests — Roll III (Products and Conservation).
Single Film, with manual $2.00
Full Set, no manual 5.00
General Science
GUY GARRARD SERIES
(Visual Text)
Cases of the Air — Part I.
Gases of the Air — Part II.
Characteristics of the Atmosphere.
Pumps and Vacuum Machines.
Ventilation.
Heat.
Insulation.
Refrigeration.
Artificial Light.
Lenses and Their Uses.
Water Supply.
Weather and Weather Instrucments.
Science in Modern Industries.
Modern Conveniences.
Transportation by Water.
Transportation by Land.
Transportation by Air.
Soil Cultivation and Soil Fertilization.
Drainage and Irrigation.
Mineral Products of the Soil.
Food from Plants.
Clothing from Plants.
Food from Animals.
Clothing from Animals.
Tea, Coffee and Chocolate.
Sugar and Salt.
Sanitation.
Methods of Communication.
Musical Instrumentals.
Single Film, no manuaL
Energy and Force.
Friction — Advantages.
Water Power.
Machines and Their LTses.
Pumps.
Telephones.
Telegraph.
Magnets and Their L'ses.
Electrical Heating Devices.
Electrical Motors and Their
Uses. Physical and Chemical Changes. Protection of Metals. Aluminum.
Carbon and Its Uses. Coal.
Copper and Its Uses. Cork and Its Uses. Glass and Its Uses. Lead and Its Uses. Leather and Its Uses. Monel Metal and Its Uses. Rubber and Its Uses. .'Sulphur and Its Uses. Logging Operations. Mining Operations. Oil Industry. Uses for Tractors. Uses for Trucks and Trailers. Building an Automobile Tire. Science in Sports.
$ 2.00
Full Set, no manual 100.00
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