Author of "Machines and Tools Employed in the Working of Sheet Metals."

Introduction.—Tool Grinding.—Emery Wheels.—Mounting Emery Wheels.—Emery Rings and Cylinders.—Conditions to Ensure Efficient Working.—Leading Types of Machines.—Concave and Convex Grinding.—Cup and Cone Machines.—Multiple Grinding.—"Guest" Universal and Cutter Grinding Machines.—Ward Universal Cutter Grinder.—Press.—Tool Grinding.—Lathe Centre Grinder.—Polishing.—Index.

"Deals practically with every phase of his subject."—Ironmonger.

Fifth Edition. Folio, strongly half-bound, 21/.

TRAVERSE TABLES:

Computed to Four Places of Decimals for every Minute of Angle up to 100 of Distance.
For the use of Surveyors and Engineers.
BY

RICHARD LLOYD GURDEN,