Ductility
3 of the 7 encyclopedias on this shelf carry an entry for Ductility. Both are reproduced below, so you can see where they agree and where they differ.
American Watchmaker and Jeweler (1892)
Tena city.(Number of lbs, sustained by c.787 of a line in diameter in wires of the various metals.) Fahrenheit Centig'de Platinum..... 21.40 to 21.50 Infusible except by the Oxyhydrogen blow-pipe. 6 3 274 Gold..... 19.25 to 19.50 2016 deg. 1102 deg. 1 1 150 1/2 Mercury..... 13.56 to 13.59 Lead..... 11.40 to 11.45 612 deg. 322 deg. 7 9 27 1/2 Silver..... 10.47 to 10.50 1873 deg. 1023 deg. 2 2 187 Bismuth..... 9.82 to 9.90 497 deg. 258 deg. Copper..... 8.89 to 8.96 1994 deg. 1090 deg. 3 5 302 Nickel..... 8.40 to 8.60 2700 deg. 1482 deg. 10 10 Iron..... 7.77 to 7.80 2786 deg. 1530 deg. 9 4 549 Tin..... 7.25 to 7.30 442 deg. 228 deg. 5 8 34 1/2 Zinc..... 6.80 to 7.20 773 deg. 412 deg. 8 7 109 1/2 Antimony..... 6.75 to 6.80 A little below red heat. Arsenic..... 5.70 to 5.90 Volatilizes below fusing. Aluminum..... 2.56 to 2.60 1300 deg. 705 deg. 4 6 300
Aiton's Encyclopedia (1910)
the quality which permits a substance to be drawn into a fine wire or thread. Heat increases ductility. Glass at a white heat may be drawn into oval-shaped threads like silk. Of the metals platinum is the most ductile. Then follow gold, silver, iron, copper, zinc, tin, lead, and nickel. Gold has been drawn into wires with a diameter of 4,000 to the inch. It is asserted that platinum wires, 30,000 to the inch, have been drawn. This is as fine as the thread of a spider. Silk, as it leaves the cocoon, runs about 5,000 to the inch. In comparison human hair is coarse. The finest hair is the six-hundredth part of an inch in diameter. Fibers of wool run from 600 to 1,500 to the inch. See Wire ; Nails
The Encyclopedia of Founding (1892)
That property or texture of bodies which renders it practicable to draw them out in length while their thickness is diminished without any actual fracture of their parts, as drawing into wire. Gold is the most ductile of the metals, after which, in their order of value, as follows: silver, platinum, iron, copper, zinc, tin, lead, nickel, palladium, cadmium. See METALS; MALLEABILITY; STRENGTH OF MATERIALS.