HEAT AND ENERGY BAR AND GAUGE A) Iron, chrome plated.  B) Brass Chrome Plated BAR BREAKING APPARATUS Heavy, one piece cast iron stand carries a rod which has hole for taking cast iron pins at one end. The other end is threaded and a hand wheel exerts force on the cast iron pin which breaks under tension. BIMETALIC STRIPS With wooden handle : A) Iron & Aluminium B) Iron & Brass C) Iron & Copper D) Brass & Copper  ALUMINIUM Solid aluminium block, cylindrical, 7.5 cm height and 7.5 cm dia, weight about 1 kg. with central hole to take immersion heater and a smaller hole for thermometer. Complete with suitable immersion heater w/o thermometer BOILERS Capacity (litres) : a) 1/2 b) 1 c) 2. Made of copper sheet. CALORIMETER : COPPER  In one piece, copper.  Size : 100 (height) x 75(dia) mm CALORIMETER : JOULE'S Complete with outer rectangular wooden polished box with Thermometer holder and copper stirrer with joint less copper vessel  A) 75 x 50 mm  B) 100 x 75 mm CALORIMETER: JOULE'S (ELECTRICAL) Consists of a copper vessel 75 x 50 mm with outer vessel of Teak wood fitted with Bakelite Top with hole for Thermometer and stirrer. The terminals connected to a coil of wire for current. COEFFICIENT OF LINEAR EXPANSION APPARATUS Spherometer or micrometer screw form, reading to 0.01 mm. It is rigidly and accurately constructed apparatus, with binding posts for connecting a bell or a galvanometer to indicate contact. The tube is of brass, chrome plated, and has steam inlet and outlet and tubulure for thermometer. The stand is strengthened with two rods. 3 experimental rods of brass, copper and steel are provided. IMMERSION HEATER 12V, 50 W. to fit into aluminium block. 12x60 mm, (dia x length). Overall length 150 mm. Supplied with approx.  1.5 meter long lead. INGEN - HAUZ APPARATUS Made of stout galvanized iron sheet, with rods RING AND BALL: Gravesands Brass ball with handle and chain, Dia of ball (mm) : a) 18 b) 25. RING AND BALL:  On stand Brass ball 25 mm dia is suspended from a rod, on a tripod stand. RODS FOR THERMAL CONDUCTIVITY EXPERIMENT Size : 30 cm length x 0.3 cm diaConsists of: A) Iron  B) Copper C) Aluminium SPECIFIC HEAT CYLINDERS Set of 6 cylinders of different metals, brass, copper, iron, aluminium, lead and zinc, of same mass 100 gms, same dia but different lengths, with holes for suspension. A wooden box is provided for storing the cylinders.  THERMAL CONDUCTIVITY APPARATUS (SEARLE'S) Consists of copper rod 30 x 2.5 cm dia with its one end surrounded with steam jacket for heating from boiler and other end is kept cool by steam of water flowing through out a spiral tube fitted on teak wood case without thermometer and boiler. THERMAL CONDUCTIVITY OF METALS APPARATUS Comprising of Bars of copper, Iron, Aluminium and Brass with nominal thermal conductivities respectively. Each 80 x 20 x 1.5 mm provided with hollow for wax, and mounted on wooden ring. Outside diameter 130 mm. Inside Diameter 80 mm. METAL ASSORTED CYLINDERS Set of six comprising Brass, Lead, Copper, Zinc, Aluminium & Iron.  a) 9mm dia X 40 mm, set  b) 12mm dia X 50 mm, set