BELL IN JAR
Used to study effects of vacuum on sound transmissions. Consists of a glass bell jar and a bell mounted on a rubber stopper with accessible electrical Contacts. With instructions.
Category: Physics & Electronic Laboratory Apparatus
GEOMETRICAL MODELS WOODEN SOLID
A set of 16 or 21 plane and solid geometric shapes. The plain shapes include triangle, rectangle, square, circle, semi circle, figure with five sides, six sides, eight sides, right angle. Solid figures include triangle, rectangle, cylinder, square, cone, square base pyramid, triangle base pyramid, pentagon, hexagon, octagon, sphere and ellipse. Supplied in a polished wooden box.
Hardwood, with single quick lock clamp.
GEOMETRICAL INSTRUMENT BOX
Soft wood, contains one each of Divider, Protector, Set square 450 angle, Set square 600 angle, Compass, Rule, Board Cleaner. Each with a finger grip for convenient handling. Packed in a wooden box of size 400 x 240 x 75 mm. width x depth x height, fitted with brass fittings and a handle for carrying.
CUBE METAL SET
Set of six, comprising one each of Aluminium, Iron, Copper, Brass, Lead and Zinc.
Size, side 10, 20, 25 mm.