ON THE ACTION OF AIR AND WATER UPON IRON. 307 
of the Atomic Alloys of Copper and Zinc of Table No. IX. 
7. | g.|9. | 10.| 11.| 12. 13. 14. 
é 3 A s er 5 ra oe to 
5 = Mbps Ue eae ar Characteristic Properties, in See 
g |g2| 8 [ez lE| é Working, be presence 
1 Soi aa Sel be Sea Water. 
Sl a RC Sa a 
Tons.) °° 15 ~|9 ° 
E. 246} 8] 1 | 22 | 15 | Well known. o§ 
€.C. |1271) 6 | 13 | 21 | 14 Hise 
F.C. |11-5| 4 | 11 | 20 | 13 Several of these are|| 5 3 
F.C. |12°8; 2 | 10 | 19 | 12 | Similar, &c. malleable at high ESzS 
F.C. |13-2} 9} 918] 11 temperatures. as a 
F.F. |141| 5 | 8 | 17} 10 223% 
F.C. {13-7} 11 2|16)| 9 | Bath Metal. a2 sao 
F.c. 147} 7| 3|15| 8 | Dutch Brass. 9 See 
F.C. |13:1| 10 | 4 | 14] 7 | Rolled Sheet Brass. 265s 
F.C. |125| 3| 6| 13] 6 | British Brass, marie 
C.C. | 9:2) 12 | 5 | 12] 6 | German Brass. a a = 
C.c. 193} 1] 7] 10} 6 » Brass, Watchmakers’. 
C. | 2:1; 0| 22) 5| 5 | Very brittle, 126% 
V.C. | 2:2) 0 | 23] 61! 5 | Very brittle, Too hard to file or| | 94 a 
C. | 07} 0} 21 | 7 | 5 | Very brittle, turn, lustre nearly; | 3 29 g 
Vv. | 32) 0|19}| 3] 5 | Brittle, equal to Speculum) | O's 2 
Cc. | 09) 0|18| 9] 5 | Brittle, Metal. aS 2 2 
C. | 0:8} 0} 20} 8] 5 | Very brittle, J as 25 
F.C. | 5:9} 0|15| 1 | 5 | Barely malleable. aE 
F.c. | 31] 0/16| 2| 4 | Brittle. 2 o's 
F.C. | 1:9} 0| 14] 41] 83 | White Button Metal. Ss ou 
| | F.C. | 18) 0/17} 11) 2: Brittle. Sao 
T.C. |15-2} 13 | 12 | 23! 1 | Brittle, well known. <4" 
of the Atomic Alloys of Copper and Tin of Table No. X. 
E. |246) 1 2 | 10 | 16 | Well known. 2 o 
F.C. 161} 2) 6| 8 | 15 | Gun Metal, &c. eae 
mG. (15-2: 03 7 5 | 14 | Gun Metal, &c. 5 2 
F.C. 17-7; 410) 4 | 13 | Gun Metal and Bronze, aI = g oa 
V.C. |18°6] 5 | 11) 3 | 12 | Hard Mill Brasses, &c, aa = 
Vv. |97| 0/12] 2] 11 | Brittle, Agee 
C. 49; 0] 13 1 | 10 | Brittle, All these Alloys found] | +s Pury 
C. | 07} 0|14| 6| 9 | Crumbles, occasionally in Bells,| | = 2-3-2 
T.C.| 05} 0|16] 7| 8 | Crumbles, with mixtures of Zn| (O.25 2 
V.C.| 1:7} 0|15| 9] 7 | Brittle and Pb. we 
T.C. | 1-4| 0 9} 11 6 | Small Bells, brittle, os 
C.C. | 39) O}] 8} 12) 5 ” brittle. be fs 
C.C. | 3:1} 0] 513] 4 | Speculum Metal of Authors, azees 
eo at|-s|\ 4114 3 nf Files, tough, S" 
mor, |95| 6| 3/15] 2 a Files, soft and tough. Po me 
3 F. | 27| 7{ 1/)164] 1 | Well known. SOE 
_E. Earthy. The maxima of ductility, malleability, hardness, and fusibility, 
same colour. The atomic weights are those of the hydrogen scale. The 
se Action of Air and Water on Iron.” Trans. Brit. Assoc. vol. vii. p. 283. 
_ without having been hammered or compressed after being cast, The weights 
_ disruption. 
: F.C. Fine Crystalline. C.C. Coarse Crystalline. T.C. Tabular Crystalline. 
pay. 
