ACCUMULATED work, 21.
Adamson flanged seam, 307.
Air-pumps, 334.

Alley's flexible coupling, 113.
Alloys, 42.

Angle of advance of eccentric, 254.
Angle of torsion, 98.

Angle, to bisect an, 7.

Arc of circle through three points, 7.
Area of a bearing, 115.

Areas of steam pipes, ports, and passages,
331.

Arms of pulleys, 147.

Arms of wheels, 185.
Armstrong's pipe joint, 83.
Ash, 44.

BABBITT'S metal, 44.

Backlash in screws, 64.
Ball valve, 249.

Bands, transmission of motion by, 139.
Bands, transmission of power by, 142.
Beams, continuous, 35.
Bearing, area of, 115.

Bearing surface of thrust collars, 133.
Bearings, collar, 115.

Bearings, crank shaft, 122.
Bearings for turbine shaft, 129.
Bearings, journal, 115, 117.

Bearings of shafts, span between, 99.

Bearings, pivot, 115, 126.
Bearings, pressure on, 116.
Beech, 44.

Belt fasteners, 135.

Belt joints, 135.

Belting, cotton, 134.

Belting, india-rubber, 134.

Belting, leather, 134.
Belting, link, 135.

Belting, paper, 135.
Belting, strength of, 141.
Belts, creep in, 145.

Belts, speed of, 144.
Bending moment, 31,

Bending moments on beams, 34, 35.
Bending, stresses induced by, 31.
Bends for tubes, 86.
Bessemer steel, 39.

Bevel wheels, teeth of, 178.
Blake's belt fastener, 137.
Boards, drawing, 1.
Boiler, Cochran's, 288.

Boiler plates, strength of, 271.

Boiler shell, strength of, 301.
Boiler stays, 309.

Boilers, locomotive, 298.

Boilers, marine, 292.

Boilers, semi-portable, 301.

Boilers, vertical cross-tube, 287.

Bolt heads, forms and proportions of, 51
Bolts for cylinder cover, 330.

Gun-metal, 43.

Gun-steel, 40.

Gusset stays, 312.

Gyration, radius of, 21.

HALF-LAP Coupling, Fairbairn's, 100.
Hall's corrugated disc pulley, 153.
Hangers, 126.

Harris's belt fastener, 138.

Hat-leather packing, 246.

Helical teeth, 191.

Helix, 14.

Hollow key, 65.

Hollow shafts, 97.

Hooke's joint, 106.

Hornbeam, 44.

Horse-power, 21.

Horse-power, indicated, 319.

Hydraulic leather packing, 245.

Hydraulic pipes, swivel joints for, 85.

Hydraulic pistons, 236.

Hyperbola, 10.

Hypocycloid, 11.

INCLINED plane, 21.

Indian-ink, 3.

India-rubber belting, 134.
India-rubber disc valves, 248.
Indicated horse-power, 319.
Injection water, 331.
Inking-in, 3.

Inscribed circle of a triangle, 9.
Instruments, drawing, 2.
Intersecting riveted joints, 281.
Intersection of cylinders, 16.
Involute of a circle, 12.
Involute teeth, 177.

JET condensers, 331.

Joint, Hooke's, 106.

Joint rings for pipes, 92.

Joints for wrought-iron and steel pipes, 86.
Journal bearings, 115, 117.

KEYS, 65.

Keys, proportions of, 71.

Keys, strength of, 70.

Kimberley pipe joint, 86.
Knuckle screw thread, 48.

LANCASHIRE boiler, staying of, 312.

Lancaster's piston packing, 231.
Lap joints, double riveted, 273.
Lap joints, quadruple riveted, 277.
Lap joints, single riveted, 273.
Lap joints, treble riveted, 275.
Lap of slide valve, 253.
Leather belting, 134.

Leather packings, hydraulic, 245.
Lettering, 6.

Lignum-vitæ, 44.

Limit of elasticity, 26.

Liner, steam cylinder, 328.

Linings for steps, 118.

Link belting, 135.

Live load, 26.

Live loads, effect of, 28.

Load, 26.

Locking arrangements for cotters, 76.

Locking arrangements for nuts, 57.
Lock-washer, 60.

Locomotive boilers, 298.

Locomotive crank axles, 196.

Locomotive, regulator valve for, 254.

Low-pressure cylinder, diameter of, 325.

MACBETH'S pulley, 152.

Mackie's pulley, 152.

Mahogany, 44.

Malleable cast-iron, 37.

Manchester waterworks, pipes for, 81.
Manganese-bronze, 43.

Marine boiler, example of a, 295.
Marine boilers, 292.

Marine connecting-rod end, 212.

Marine coupling, 103.

Mather and Platt's friction clutch, 110.

Mean pressure on piston, 323.

Mean pressure referred to low-pressure
cylinder, 325.

Medart's pulley, 152.

Metallic packing for stuffing-boxes, 243.
Modulus of elasticity, 27.

Modulus of section, 32.

Moment, bending, 31.

Moment of a force, 19.

Moment of resistance, 32.

Moment, twisting, 94.

Moments, principle of, 19.

Morison's corrugated furnace tube, 308.

Motion in a circle, 20.

Moxon's belt fastener, 138.