Codex @codex  0

What explanations can you give of the following phenomena :—halos, water-spouts, hoar frost, hail ?

Show how an induced electrical current can be obtained from a permanent steel magnet, or from the earth.

What evidence is there of the identity of frictional and of Voltaic electricity ?

Describe the decomposition of light by a prism. What are Fraunhofer's lines ; what is their use in the construction of optical instruments, and what is the physical explanation of their existence ?

What do you understand by the mean temperature of a place ? By what observations is it determined, and what are the causes which make the mean temperature of one place to differ from that of another ?

What are the advantages and disadvantages of warming by open fire-places, by hot air, hot water, and steam, respectively ?

Distinguish between quantity of heat and temperature ; and describe the processes by which the specific heats of bodies are determined.

What are the mechanical principles upon which the use of a pendulum in a clock, and of a balance wheel in a watch, depends ?

Mention any properties which all elastic fluids possess in common.

Define the centre of gravity of a body. What properties has the centre of gravity (1) with respect to the equilibrium of the body, (2) with respect to its motion ?

Prove the impossibility of constructing a machine for producing perpetual motion.

Explain the terms Molecule, Elasticity, Inertia, Force.

Give the ratio which equal volumes of the following gases bear to the volumes of the elements of which they consist :—Hydrochloric Acid, Water, Protoxide of Nitrogen, Binoxide of Nitrogen, Ammonia.

How may Glucose be prepared and detected ?

What are the constituents of cows' milk, and how may they be separated ?

Explain briefly how each of the substances named in the preceding question may be best prepared.

Give the Chemical Formulæ of the following substances :—Hydrocyanic Acid, Formic Acid, Oxalic Acid, Calomel, Corrosive Sublimate, Arsenious Acid, Tartar-Emetic, Chlorate of Potash.

What observations are required for the accurate comparison of the volumes of two gases, and for what reasons ?

What formula would you assign to a substance which gave the following results to analysis :—

and of which the vapour density was 3.05.

What are the proportions respectively required of Carbonate of Potash, Carbonate of Soda, and Caustic Magnesia to neutralize a given quantity of Sulphuric Acid ?