Principles and practices of up-keep painting (1923)
E.I. du Pont de Nemours & Company, author · Chicago, Ill. ; Philadelphia, Pa. ; Boston, Mass. : E.I. du Pont de Nemours & Co., Inc. · leaf 113
the growth of demand stop, and how many years will the world’s ore supply stand the drain upon it? These are questions of vast im¬ portance, the answers to which can only be vaguely guessed. One thing seems certain, namely that civilization must learn to conserve more efficiently its stores of iron… … “Engineering and Contracting.'’ Three Photomicrographs of Corroding Steel 87
Painting, Industrial · Varnish and varnishing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
