(University Pattern) Comprising two units each having a double walled jointless copper vessels with non-conduction cover through which is suspended a 7.5 x 5cm size copper calorimeter.A second covering protects the top of the calorimeter from dust and heat losses.The annular spaces between the double walled vessels are connected by T Tubes, which enable water at same temperature to be kept circulating through them,superior quality. Application/Usage :- To verify Newton's Law of Cooling