seams for boiler flue tubes, 164, 178,
182.

of steam, 8, 24, 26, 160.

of steam, ratio of, 20.

of steam, theoretical curve of, 24.
of hot-water pipes, 204.

of steam-pipes, 204.
of water in freezing, 92.
of water by heat, 194.

Express locomotives, 48, 51, 73, 77, 79.

FACTORS of safety, 179, 180, 182, 207,

259, 260, 264, 265, 284.

Factory chimneys, rules for, 187, 188.
chimneys, horse-power of, 187.

Factories, depreciation of, 336.

, warming by hot water and steam,

200-204.

Fahrenheit degrees, to convert to centi-
grade, 338.

Fall of drains, pipes, sewers, and rivers,

109.

of water, force of, 106.

Falling bodies, 335.

Fans, speed and proportions of, 213.
Feed-pipe, position of in boilers, 166.

-pump for non-condensing engines, 12.
-pump for condensing engines, 16.
-water, heating, 166.

-water, supply, 99, 166, 190.

of cut, of machine tools, 210.

Felt, hair for covering pipes, &c., 112.
Final pressure of steam, 20.

Finishing brass and gun metal, 239.
iron and steel, 239.

iron castings, 239, 320.

Fire bars for boilers, 189.
bridge of boilers, 165.
box, 168.

Firing boilers, 190.

Fitter's work, price of, 218.

Fittings for boilers, 165, 190.
—, steam, metal for, 231.

Flanged seams for boilers, 164, 178.

Flux for brass, 323.

for solders, 239.
Fly-wheels, 15.

Force, tractive of locomotive engines, 30.
-pumps, 94, 95.

Forge tests for iron and steel plates, 260.
Fossil meal covering for pipes, 112.
Foundation bolts, 284.

for gas engines, 87.

for steam engines, weight of, 15.
Foundry brass, memoranda, 228, 323.
iron, memoranda, 226, 323.
receipts, 323.

Fractional parts of a foot, 330.

parts of a hundred weight, 332.
parts of an inch, 329.

parts of a millimetre, 375.

parts of a pound avoirdupois, 331.
Freezing, expansion of water in, 92.
mixtures, 326.

point of various liquids, 236.

French horse-power, 382.

measures and English equivalents, 376

-381.

225.

pitch of screws, rules for cutting, 218,

polish for wood, 321.

unit of heat, 382.

unit of work, 382.

weights, 382.

words for English engineering terms,
353-375.

Friction of bearings, 139.

of leather belts, 154, 156.

-, power absorbed by, 138.
resistance to, 138.

of rope-belts, 127.

of ropes in grooves, 127.

of ropes on pulleys, 156.

of shafts, 138.

of water in pipes, 108, 109.

-brake, the, 147, 148.

Frictional gearing, 125.

Fuel, combustion of, 160.

-, consumption of per indicated horse-

power, 161.

Fuels, 160, 161, 313.

Furnace, air in, 165, 187.

brass, 228.

Galloway boiler, 168.

tubes, 168, 169.

Galvanized iron cisterns, usual sizes of, 294.
iron sheets, 303.

iron wire, 299.
Galvanizing iron, 241.

Gas, discharge, pressure, and power of, 208.
coke, specific gravity of, 272.
engines, notes on, 84-88.
fittings and tubes, weight of, 285.
fittings, brass, alloy for, 232.
pipe, weight of, 285.

pipes, proportions of, 104, 254.
threads, 253, 254.

Gases, expansion of, by heat, 198.

weight of, 273.

Gauge, B G, for sheets and hoop-iron,

Glass-cutters, sand for polishing metals, 239.
weight of, 303.

Gold coin, weight of, 347, 386.
coins, alloy for, 386.
imitation, 233.

solders for, 238.

-, standard, 233.

Goods, locomotive engines, 32.
sent on sale or return, 344.
sold, notes on, 344.

Governor arms, 17.

balls, 17.

for gas engines, 88.

for steam engines, 16—19.
Governors, centrifugal force of, 16.
-, centripetal force of, 16.
cross-armed, 18.
ordinary, 16.
pulleys for, 18.
speed of, 17, 19.
spring, 18.

weighted, 18, 19.

Grain-tin, 387.

Grate bars, size and weight of, 189.
surface required for wood burning,

194.

Gravers, to harden, 247.

Gravity, resistance due to, 30.
rules for, 334, 335.

Grease, antifriction, 324.

axle, 324.

for toothed wheels, 324.

Great Eastern Railway, express locomotive,

48.

73.

Western Railway, express locomotive,

Green varnish for metals, 322.

Grindstones, speed of, 213.

Grooves, friction of ropes in, 127.
Guns, bore of, 302.

-, power of shot, 339.

-, testing, 339, 340.
velocity of shot, 335.

Gun-metal casting, 228.

metal, various mixtures of, 228-233.
metal, weight of, 229, 291, 292.
Gusset stays, for boilers, 163.
Gutta percha, cement for, 314.

percha, specific gravity of, 272.
Gyration, radius of, &c., 120.

of water, pressure of, 105.

Heat, absorption of, 199.

cement to resist, 318.

-conducting power of metals, 198.

effect of, on water, 159.
expansion of gases by, 198.

expansion of liquids by, 198.
of furnaces, 236.

melting, 236.
radiation of, 199.
reflection of, 199.

smelting, 208, 236.

specific, of solids and liquids, 197.
transmitted through plates, 200.
welding of iron, 236.

Heating buildings and rooms by hot water,
201-204.

203.

buildings and rooms by steam,

Horse labour, 5.

Horse-power, 4.
actual, 4.
nominal, 4.

absorbed by friction, 138.
of belts, 155.

of bevel wheels, 122.
of centrifugal pumps, 96.
of Cornish boilers, 166.
of crank shafts, 141.
of egg-ended boilers, 166.
of engines, 4.

of compound engines, 22.
of locomotive engines, 31.
of fans, 213.

of factory chimneys, 187.
French, 382.

of gearing, 123, 127-137.

silver, 235

Imperial standard wire-gauge, 331.

standard wire-gauge, weight of a
square foot of metals to-viz. of sheet-
iron, sheet-copper, brass, gun-metal,
Bessemer steel, rolled steel - white
metal, zinc, lead, 289, 290, 291.

standard wire-gauge, weight of wire
to, 293.

Impressions, alloy for taking, 235.
composition for taking, 323.
Inclination and weight of roofs, 329.

of drains, pipes, sewers, and rivers, 109.
Incrustation in steam boilers, 189.
India-rubber, cement for, 316.
weight of, 272.

- belting, 156.

Law, notes on, 343-345.
of Patents, 340-342.

Lead, alloys of, 234, 235.
bars, weight of, 301.
notes on, 387.

pipes, composition, 286.
pipes, strength of, 294.
pipes, weight of, 294, 295.
required for pipe joints, 296.
sheet, strength of, 271.
sheet, weight of, 291, 303.
Lead of valve, 9.
Leaky pistons and valves, 7.
Leather, cements for, 316, 318.

belts, cements for, 319.
belts, dressing for, 325.
belts, horse-power of, 155.
belts, rules for, 155.

belting, strength and weight of, 155.

Left hand screw-threads, 222.
Legal memoranda, 343-345.
Length of boilers, 162.

of stroke of engines, II.
of stroke of pumps, 96.

Lift of centrifugal pumps, 96.
of hydraulic rams, 97.
of pumps, 93.

of safety-valve, 184.

Lightning conductors, 188.

Limits of velocity in rivers, &c., 110.

Line of back pressure in diagrams, 25, 27.

Linen belting, 156.

Links of chains, proportions of, 264.

Liquids, expansion of by heat, 198.

specific gravity of, 273.

weight of, 273, 305.

List of French words for English engineer-

ing terms, 353-375.

of chemical and mineral substances,

Materials, strength of, 101, 102, 123, 155,
156, 177, 178, 226, 229, 230, 259, 270,
271, 279, 284, 293, 294.

Mean annual rainfall, 390.

effective pressure of steam, 20.
pressure of steam, 20.
temperature of air, 389.

Measures, French, 375-382.
Measuring patterns, 276.

timber, 308.

Megass fuel, 161.

Melting point of metals, 236

Memoranda, hydraulic, 91, 110.
legal, 343-345.

foundry, 226, 228, 323.

Men, power of, 5.

tested performances of, 383.

Mercury, column of, 338.

-, melting and boiling points of, 236.
Metal, anticorrosive, 232.

antifriction, 234, 235.

for anvils, 227.

for bearings, 229-235.
for bells, 233.

for brass boiler tubes, 231.

for brass bolts, 231, 232.

for brass and bronze castings, special

mixtures of, 229–233.

for bushes, 229-235.

for chilled rolls, 227.

for cocks and valves, 231, 232.

for cylinders, 227.

for jewellers, 232.

-, special mixtures of, for iron castings, 27.
Metals, white, 234, 235.

blueing and bronzing, 240-242.
colouring, 240–242.

conducting power of, for heat and
electricity, 198, 256.

cutting, 209.

dissolving, 242, 386.