of which we are made sensitive of the different forces.

Vocation. The business or the calling of a person.

Warding. The act of cutting a projection or guard, such as is
usually found on the insides of locks, and the
correspondent detent in the key.

Watt. In electricity the unit of the rate of working in a
circuit. It is the electro-motive force of one volt
and the current intensity of one ampere.

INDEX

(Figures indicate the pages)

A

Acetone, 165.

Acid, 119, 120, 156, 168.

Acid, Acetic, 165.

Acid, Carbolic, 166.

Acid, Hydrofluoric, 170.

Acid, Muriatic, 119.

Acid, Nitric, 168, 169, 171, 173.

Acid, Oxalic, 172.

Acid, Pyrogallic, 172.

Acid, Sulphuric, 169.

Acoustics, 87, 157.

Adhesives, 162.

Affinity, 83, 86.

Agate, 82.

Air, 84.

Alcohol, 165, 166, 169, 170, 176, 183.

Alloy, 81, 115, 116, 118, 119, 149, 175.

Alum, 149, 166, 172.

Aluminum, 38, 41, 42, 60, 82, 149, 164, 166, 169, 170, 174, 175, 176,
184.

Amalgams, 149.

Amber, 170.

Ambergris, 159.

Ammonia, 166, 170.

Ammonium Nitrate, 185.

Ammonium Sulphate, 168, 171.

Analysis, 93.

Analyzed, 159.

Angle cutting, 30.

Angle plate, 10.

Angles, 31, 39, 59, 72, 102, 103, 104, 107, 152.

Aniline, 176.

Annatto, 168, 170.

Annealing, 112, 113, 114, 115.

Annular, 67.

Anvils, 14, 15, 16.

Apothecaries, 180.

Application for patent, 191.

Arbor, 14.

Arc, 146.

Area, 148.

Armature, 153.

Arrow root, 150.

Artisan, 112.

Asbestos, 168.

Asphalt, 14, 175.

Assign, 191, 193.

Assignment, 192.

Atom, 157.

Attraction, 86.

Avoirdupois, 180.

Axis, 106, 127.

Axis, major, 105.

Axis, minor, 105, 106.

B

Ball, 75.

Ball and Socket, 74.

Balsam Peru, 168, 189, 173.

Barium Chloride, 176.

Bark, soap, 165.

Barleycorn, 143.

Barrel, 149.

Base line, 102.

B. T. U., 180, 181.

Beeswax, 174.

Bell metal, 164.

Belt, 68.

Belt, Lacing, 68, 69.

Bench, 77, 104.

Benzine, 169.

Benzol, 173.

Bevel, 69, 70, 125, 126.

Bibb, 70.

Bismuth, 118.

Bisulphate of carbon, 185.

Bisulphate of sodium, 172.

Bitt, 28, 42.

Bitts, machine, 38.

Bitts, plain, 38.

Bitts, round-nosed, 38.

Bitts, setting, 39.

Bitts, square, 38.

Black, ivory, 171.

Blade, hack-saw, 35, 36.

Bloodstone, 173.

Blue black, 173.

Bo