cxlii Senior Examination : Syllabus of Suljects. 
V. MENSURATION AND LAND SURVEYING. 
Ordinary rules of superficial and solid mensuration. Volume of a pris- 
moid. Applications to practical questions. Estimation of weights of bodies 
whose dimensions and specific gravity are known. 
Land surveying by chain. Plotting from field book, and determination 
of areas surveyed. The simpler " ground problems." 
Levelling and plotting from field book. 
Trigonometrical siu-veying, and determination of heights and distances 
by Theodolite ; as essential to this, solution of plain triangles by the aid of 
Logarithmic Tables, 
VI. AGRICULTURAL ENGINEERING. 
a. Mechanics. 
Centre of gravity ; stability of structiu-es. The lever ; toothed wheels ; 
pulleys and ropes; wrapping connectors; winches; difi"erential pulleys. 
Laws of motion. Strength of materials, tensile, compressive, torsional, and 
transverse; elastic limit; ultimate strength. Work; horse-power; animal 
and human power. Friction of surfaces and axles ; lubrication. 
h. Heat. 
Nature of beat ; thermometer ; absolute zero ; specific heat ; latent 
heat; the unit of heat. Total heat of water; as ice, water, and steam. 
Conduction, convection, and radiation of heat. Mechanical equivalent of 
heat. Principle of combustion. Quantity of beat generated by combustion. 
Modes of transforming heat of combustion into power. 
c. Air. 
Composition of air. Properties of air ; elasticity, specific lieat. Barometer ; 
moistm-e ; movement. Winds. Wiudmills. Office of air in combustion ; 
quantity required, 
d. Water. 
Composition. Weight. Height of column to balance atmosphere. Flow 
of water. Friction of water in pipes and channels. Usual speeds of flow. 
Power derived from falls of water. Water-wheels ; turbines ; water- 
pressure engines; pumps. Potable water. Sources of supply. Means of 
purification. Storage, 
e. Steam Engine. 
Construct ion of an ordinary portable-engine boUer, of a Cornish boiler and 
its setting. Fittings of a boiler. Construction of the stationary and portable 
steam-engine. Single cylinder. Double cylinder. Compound. Slide-valve. 
Expansion valve. Cylinder. Piston-rod, Glands. Connecting-rod. Crank 
and crank shaft. Fly-wheel. Bearings. Pet cocks. Lubrication, Steam 
and fuel consumed per horse-power, 
f. Gas and Petroleum Engines. 
Principle of action. Construction of valve-gear. Sources of loss. Fuel 
and water required per horse-power. 
