The hardness of metals and its measurement

[William Wheeler Hubbell, authorized to apply for patents.]

United States. Congress. Senate. Committee on Patents

Naturalis historia

Pliny the Elder

Sylva sylvarum

Francis Bacon

Metals handbook

American Society for Metals

Metal Ions in Biological Systems

Helmut Sigel

Report of the Tests of Metals and Other Materials for Industrial Purposes ..

United States

Techniques of metals research

R. F. Bunshah

ASM handbook

ASM International. Handbook Committee

Forgerons et alchimistes

Mircea Eliade

The science and practice of welding

A. C. Davies