On frontispiece: "PRACTICAL // DENTAL METALLURGY // A Text and Reference Book for Students and // Practioners of Dentistry // Embodying the Principles of Metallurgy, and Their Application to // Dentistry, Including Experiments // BY // JOSEPH DUPUY HODGEN, D.D.S. // Professor of Operative Dentistry (formerly Professor of Dental Chemistry // and Metallurgy. College of Dentistry, University of California // REVISED BY // GUY S. MILLBERRY, D.D.S. // Professor of Chemistry and Metallurgy and Dean of the College of // Dentistry, University of California // SIXTH EDITION - COMPLETELY REVISED // ST. LOUIS // THE C. V. MOSBY COMPANY // 1929"