Polishing clamps, [i, 311].
device for engraver’s plates, [ii, 51].
materials, for brush wheels, [ii, 50].
for polishing wheels, [ii, 50].
for rag wheels, [ii, 51].
wheels, [ii, 49]-[51].
construction of, [ii, 49].
emery charging, [ii, 50].
for brass work, [ii, 50].
lapping leather on, [ii, 49].
large, keeping true, [ii, 50].
materials for, [ii, 50].
rag, [ii, 51].
speed of, [ii, 50].

Polygons, measuring sides, [ii, 283].

Pony planer, [ii, 323].

Position of emery wheel, [ii, 35]-[37].
of dies in bolt cutting, [i, 473].
of taper pins for locking, [i, 128].

Positive feed, gear cutter, [ii, 55].

Pounding, the causes of, [ii, 168].

Power drilling machine, [i, 428].
hammer, [ii, 252].
lathes, [i, 130].
milling machine, [i, 470].
of an engine, testing, [ii, 408].
threading machine, [i, 465].

Powers, mechanical, [ii, 405].

Preserving wood, [ii, 264].

Press for forging, [ii, 260].