Slide-valves, balanced, [ii, 377].
circular, [ii, 377].
designing, [ii, 380].
double ported, [ii, 377].

Slide-valves, steam lap of, [ii, 376].
the lead of, [ii, 376].

Slots and holes in planing-machine tables, [i, 417].

Slotted work, tools for, [i, 424].

Slotting-machine, [i, 459].
sectional view of, [i, 460].
tool-holders, [i, 460], [461].
tools, [i, 461].

Snifting valve, [ii, 440].

Socket forging, [ii, 243], [244].
wrench, [i, 125].

Sockets, drill, [i, 445].

Solid and split pulleys, [ii, 200].
ended connecting rods, [ii, 114].
leather wheels, [ii, 51].
tap wrenches, [i, 110].

Spacing gear-wheel teeth, [i, 57], [58].
reamer teeth, [i, 282], [ii, 98].
rivets in boiler seams, [ii, 353].