ensive handbook on the treatment of tool-steel in forging, annealing, hardening, tempering, etc. Profusely illustrated and full of useful, timeless information, this volume will be of considerable utility to those with an interest in metal work and the manufacturing of steel. Many vintage books such as this are increasingly scarce and expensive. We are republishing this volume now in an affordable, modern edition complete with a specially commissioned new introduction on metal work. First published in 1902. Contents include: I. Composition of Tool-Steel and Its Classification According to It II. Classification of Tool-Steel According to the Degree of Hardness and the Purpose for Which It is to be Used III.Observations on the External Appearance of Commercial Tool-Steel IV. Observations on the Fracture of Steel, with Regard to the Structure in the Hardened and Non-Hardened States V. Practice of the Fire-Treatment of Steel VI. Appliances for Annealing Steel VII. Appliances for Hardening Steel VIII. Hardening of Tool-Steel in General IX. Hardening of Tools Which are to be Hardened in their Entirety X. Hardening of Tools Which are only to be Partially Hardened XI. Cooling of Tools in Hardening and Devices for this Purpose XII. Liquids Used in Quenching Steel XIII. Tempering of Hardened Steel, and Devices for this Purpose XIV. Straightening Tools XV. Case-Hardening and Preventatives Against Superficial Decarbonization and Overheating XVI. Welding of Steel XVII. Regeneration of Steel Which has Been Spoiled in the Fire XVIII. Investigations of Defects of Hardened Tools XIX. Improving Properties of the Strength of Steel