Calendar: 1856-1857 Page 391

392 MEDICAL DEPARTMENT What do you observe by examining the preparations marked under power of 40 diameters an inch object glass Answers to these questions may be illustrated by sketches III -CljemtStrg Upon what principle is the measurement of temperature effected How are very high degrees of temperature estimated Exemplify the principal methods by which the equilibrium of temperature in natural objects is maintained or restored Give an outline of the process adopted by Melloni for measuring the permeability of transparent bodies to heat Define the terms diatformic and athermanous Describe Leslie's method of freezing water in an exhausted receiver and explain the principle of the operation Give proofs of the existence of two kinds of electricity and state how they may be distinguished from each other Describe some of the best means of measuring the charge of Leyden jar What is the principle upon which Daniell's battery is con- structed Explain to what circumstances it owes its constancy Define the laws of Multiple and Equivalent proportions giving examples of each Define the terms-acid base and salt IV -Cijtmfeto What is the composition of water Describe the properties of its components and the mode by which each is ordinarily procured What are the chief natural sources of Carbonic Acid Describe its properties chemical characters and composition What is Oxalic Acid how is it procured Give the tests of its presence and state the action of Sulphuric Acid upon the Oxalates