6. How much chlorine can be prepared from 10 pounds of hydrochloric acid?

7. Describe the properties of hydrochloric acid, and its preparation.

8. How is Iodine prepared from kelp?

9. How can you prove the difference between a Nitrite and a Nitrate; a Sulphite, a Sulphate, and a Sulphide; a Chlorate and a Chloride?

10. Explain the structure of the flame of a candle, and describe experiments to prove your explanation.

ELEMENTARY PHYSICS.

The Board of Examiners.

Candidates must satisfy the Examiners in Dynamics, and in one only of the other subjects. Of two alternatives in any question, one only must be attempted.

DYNAMICS.

1. Explain and illustrate by a single example(a) The Second Law of Motion;

or (b) The Principle of Energy.

2. Describe and explain the action of (a) the Common Pump; or (b) the Common Scales.

3. Relate, giving clearly the reasoning from the facts, an experiment to shew

(a) That the force of gravity is proportional to

mass;

or (b) That the volume of a gas varies inversely as the pressure.

4. Explain clearly the following phenomena :

(a) The kick of a gun.

(b) The rising of a balloon.

(c) The bursting of Prince Rupert's drops.

5. Shew that the Principle of Energy is true in the case of the Hydraulic Press.

6. Solve the following problem :

(a) If a cubic foot of water weigh 1,000 ozs., and 2.75 cubic inches of mercury weigh 1.3475 lbs., find the density of mercury.

or (b) If the arm of a cork-squeezer be 18 inches, and a cork be placed at a distance of 11 inches from the hinge, find the squeeze given by a pressure on the handle equal to 25 lbs.

HEAT.

1. Explain and illustrate by a single example(a) The effect of heat on the size of a body; or (b) One of the methods of measuring quantities of heat.

2. Describe and explain the action of (a) the Compensating Balance; or (b) the Safety Lamp.

3. Explain clearly the following phenomena :

(a) The cracking of glass by hot water.

(b) The cold sensation on touching a brass door handle.

(c) A morning mist over a river.

4. Apply the Principle of Energy to Latent Heat.

5. Solve the following problem :

(a) The specific heat of ice being 5, find the quantity of heat which must be applied to

ten lbs. of ice at

perature to 0°C.

5°C. to raise its tem

or (b) A man whose weight is 120 kilogrammes runs up a smooth staircase, 30 metres in height. How much heat has he expended in doing

so?

SOUND AND LIGHT.

1. Explain and illustrate by a single example— (a) The nature of a Sound Wave.

or (b) The Laws of the Reflexion of Light.

2. Describe and explain the action of (a) Savart's machine for measuring the number of vibrations; or (b) Bunsen's Photometer.

3. Explain clearly the following phenomena:(a) The apparent bending of a slanting stick partly under water.

(b) Beats in music.

(c) The rainbow.

4. Trace roughly the principal transformations of energy which take place when a cannon ball is fired from a cliff into the sea.

5. Solve the following problem :

(a) A man fires a bullet from a rifle with a velocity of 414 metres per second, and hears it strike a target four seconds afterwards. Assuming the velocity of sound to be 333 metres per second, find his distance from the target.

or (b) Two sources of light, whose intensities are as 12, are two metres apart. At what

position is a space between them equally illuminated?

ELECTRICITY AND MAGNETISM.

1. State, and illustrate by an example— (a) The laws of magnetic attraction;

or (b) The laws of the mutual action of electric

currents.

2. Describe and explain the action of—

(a) The Mariner's Compass;

or (b) Daniell's Battery.

3. Explain clearly the following phenomena:(a) The dip of the magnetic needle.

(b) The lightning conductor.

(c) The horseshoe shape of the best magnets.

4. What is the source of the energy of induction currents?

5. Solve the following problem :

(a) If two small pith balls are charged with +36 and 28 units of Electricity respectively,

what force will they exert on each other at a distance of four centimetres?

If they are made to touch and then put back, what force will they afterwards exert?

or (b) The surfaces of three Leyden jars are as 5812, and their charges are as 20: 12 6. If the heat produced by the discharge of the first be 100 units, find that of the other two.

ELEMENTARY PHYSIOLOGY.

The Board of Examiners.

1. Describe the valves of the heart and their several actions.

2. How does inspired air differ from expired air?

3. Describe the general appearance, chemical composition and functions of bile.

4. Describe the appearance, relations and structure of the retina.

5. Describe the coagulation of the blood, and comment on the chief circumstances which affect the rapidity of its occurrence.

6. Describe the organ of voice.