Preface 65 4. Copper-aluminum-nickel 65 5. Copper-manganese-nickel 65 16. Nickel-molybdenum 67 17. Nickel-tantalum 67 18. Nickel-thorium 67 19. Nickel-tin 67 20. Nickel-tungsten 67 21. Nickel-zinc 67 22. Platinum-nickel 67 23. Rhodium-nickel 67 24. Silver-nickel 67 25. Tungsten-nickel-copper 67 Part 4. I. References 68 IV Nickel and Its AlloysThis Circular reviews available information about nickel and its alloys, with particular attention to the physical properties and applications of the metal, and its ferrous and nonferrous applications. It is a revision of National Bureau of Standards Circular 100, issued in 1924. are the deposits in China,