| BG STUDENT PLANETARIUM- Three Globe Model-
All plastic very superior (Export Quality) with light
BG-1 SOLAR SYSTEM MODEL: A three dimensional model of the sun and planets teaches planet identification, sizes, distances, and colours. The planets may be set by month to show their relative positions. A sturdy base supports the 6-in. diameter sun with the outer planet 18 inches from the sun. Illustrated Study Guide includes planet position tables. All plastic, very superior quality
----- do---- but with electric bulb fitting to illuminate the Sun
BG-lB SOLAR SYSTEM MODEL -Same as above but with electric bulb fitting to illuminate the Sun
BG-2 SOLAR & LUNAR ECLIPES : All plastic very superior
BG-3 DAYAND NIGHT: very superior
BG-4 THE SOLAR SYSTEM: A unique idea showing the revolution of the planets around the Sun. Superior quality with all Nine planets with an electric bulb fitting for representing the sun
BG-5 THE SOLAR SYSTEM : Same as above but economical model
BG-6 STANDARD TIME INDICATOR: Comprising a terestrial globe with a ring all round, graduated in hours and parts
BG-7 SOLAR & LUNAR ECLIPSES: A simple model to show how Solar and Lunar eclipses are formed. Complete with candle holder
BG-8 UNIVERSAL SUN DIAL - with levelling screws, Graduated Scale Protractor & a clamp to fix the Gnoman
BG-9 PHASES OF THE MOON
BG-8 APPARATUS DAY & NIGHT - Consists of a 12 cm. dia. Political Globe, capable of rotation round its axis, with a candle holder
BG-10 SEASONS APP. SET OF 4 GLOBES. The four Globes of four different colours with inclined axis, always pointing in the same direction, with candle to represent Sun in centre of metal disc, 25 cms in diameter
BG-11 APPARENT PATH OF THE SUN - The apparatus has a metal ring with movable globe & a protractor adjustable in any direction on stand.
I . BG- 12 APPARATUS GEOGRAPHICAL MERIDIAN OF A PLACE
BG-13 SEXTANT MODEL - with frame, divided arc fitted with vernier, reading to
1 -10 degree sighting hole, glass mirror
BG-14 STUDENTS PLANETARIUM - Hand Driven. The position & motion of the Earth and venus around the Sun is nicely demonstrated. The Earth moves around the Sun. It also rotates on its own axis. The Moon moves in its orbit around the Earth and vemis follows its path around the Sun.
BG-l 4 THEODOLITE MODEL -
NEWLY INTRODUCED SLIDE SETS
95. Rivers from source to mouth :- A collection of 40 colour slides illustrating the development of embryonic river systems, their erosive power, evolution and geomorphic importance. detailed treatment of gullies, types of river valley, mechanics of erosion, transportation of sediments, sedimentary features and specific landform with Text in plastic jacket Set of 40 Slides
Active Faults :- An interesting combination of classic and finely detailed scenes along the San Andreas and associated faults to illustrate the dynamic nature of these major lines of geological weakness with Text in plastic jacket Set of 40 Slides
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