SELECTED FROM CHAMBERLAIN'S ILLUSTRATED AND DESCRIPTIVE CATALOGUES, AND ARRANGED IN SETS CORRESPONDING TO THE SUMS ANNEXED. [It will be seen that the highest cost and largest sized instruments have not been incorporated into sets, as such instruments are generally required for institutions having more or less good apparatus of a small class, that is made more valuable by being used in connection with an efficient Air Pump or Electric Machine.] No. 2, marked 2 in Catalogue. Cohesive Attraction Plates,..... 1 001 Cube Root Solids,.. 125 Lead Hemispheres, for Cohesive Twelve turned Solids,... Attraction, 1 00 Ten Parallelopipeds,.. ........ 1 00 Capillary Tubes, 1 50 Five regular Solids,. 1 00 Collision Balls and Frame, 4 00 Centre of Gravity Apparatus,.... 7 00 Mechanical Powers,.... 35 00 Five Transposing Frames,....... 1 00 20 1 00 |