(5.) Chemistry.

Air; its weight; rusting of iron and the effect on the composition of air; effect of heating in air, lead, copper, sulphur, phosphorus, magnesium; volumetric analysis of air; detection of water and carbon dioxide in the air; constituents of air; respiration and the carbon cycle.

Air and combustion; the burning of a candle; structure of candle and gas flame; fuels (wood, coal, coke, charcoal, coal-gas, kerosene, petrol); products of combustion; danger of imperfect combustion.

Water; natural waters; common impurities and methods of removing them (e.g., sedimentation, boiling, distillation, chlorination); hardness of water; composition of water; water of crystallization (easy experiments).

The determination and graphic representation of the solubility of solids in water at different temperatures (easy cases).

Preparation (laboratory and commercial) and properties of oxygen, nitrogen, and hydrogen.

Elements, mixtures, compounds; chemical and physical changes; indestructibility of matter; symbols, formulae, equations; the determination in easy cases of the weight of the materials required to yield or to combine with a given weight of a given substance.

Experiments illustrating modes of chemical action. The nature and general properties of oxides, acids, bases and salts.

The most important properties of carbon, sulphur, phosphorus, and sulphuric acid; the preparation and properties of the oxides of carbon, sulphur dioxide, chlorine, ammonia, hydrochloric acid and nitric acid.

An elementary experimental study of limestone, quicklime, slaked lime, washing-soda, caustic soda, common salt, and copper sulphate.

The candidate will be expected to show that he has acquired by actual experiment, observation, and measurement his knowledge of the matters set forth in the above syllabus; but he will not be expected to show that he is familiar with other than the simple apparatus and appliances commonly used in connection with elementary instruction in practical chemistry in secondary schools. He will be required to forward, before the date of examination, a certificate in the prescribed form that he has carried out satisfactorily a course of practical work based on the syllabus.

(6.) Magnetism and Electricity.

Properties of magnets; methods of making magnets; induction; elementary notions of the magnetic field and lines of force; the earth as a magnet; dip; declination; mariner's compass.

Electrification by friction and by induction; conductors and non-conductors; the gold-leaf electroscope and its use; distribution of electrification on conductors; hollow conductors; the electrophorus.

Elementary notions of the electric current, of the means of producing it, of its magnetic, heating, and chemical effects; water and silver voltmeters; elementary notions of electromotive force and resistance; Ohm's law; electrical units (ampere, volt, ohm, watt, Board of Trade unit).

The galvanometer, its use in detecting changes in the strength of a current and in comparing (roughly) the strength of different currents and the resistances of different conductors; ammeters and voltmeters (treated simply); the resistance-box.

Electromagnet; electric bell; glow-lamp.

Very elementary ideas of electro-magnetic induction.

The candidate will be expected to show that he has acquired by actual experiment, observation, and measurement his knowledge of the matters set forth in the above syllabus; but he will not be expected to show that he is familiar with other than the simple apparatus and appliances commonly used in connection with elementary instruction in practical physics in primary or secondary schools. He will be required to forward, before the date of examination, a certificate in the prescribed form that he has carried out satisfactorily a course of practical work based on the syllabus.

(7.) Technical Electricity.

Simple experiments with compass and magnet.

Elementary magnetic properties of iron and steel. An elementary study of magnetic fields and lines of force.

The Leclanche cell. Magnetic field about a wire carrying a current. Solenoids and electromagnets. The electric bell. The relay, the telegraph, and the telephone.

Practical units of current, quantity, electromotive force, resistance, power and energy. Laws of resistance. Use of Ohm's law for simple circuits.