422 
On the Resistance of Solids. 
TABLE I —(continued.) 
; [sas Bie 
gSalzis} yb |é 
Metals. g2 Le Z 23 3 z z Authority. 
POC Seg) ao |x 
Cast IRON. 
French gray .... t} 4°000] 37,680 Rondelet, L’Art de Batir, iv. 514. 
Gray, of Cruzot, ?| 3,95- R. es 
a (eer ‘57 | $0,680 amus, Gauthey, il. 150, 
Gray, of Cruzot, 3-202 |< ; a a 
Ist fusion ¢ .. #02 | $0,162 Ramus, Gauthey, ib.§ 
Coprer . 
Wires set cert a 6-606 | 61,298 Sickingen, Ann. de Chimie, xxv. 9. 
Cast, Barbary ....| 2°596 | 22,570|8-182 8 Muschenb, Inir. ad Phil Nat. i.417. 
Japan...... ~152]} 20,279] 8-796 |8tlIdem. 
PLATINUM. 
NING 7 Bers: ota 5-995 | 56,473|20-847 8 Morveau, Ann. de Chimie, xxv. 8, 
Mire). {on yee 5-625 | 52,987 I Sickingen, Ann. de Chim. xxv. 9. 
SILVER 2 
WIRE 5 oi. ge-casicee 4-090 | 38,257 ~,|Sickingen, Ann, de Chim, xxv. 9. 
Gast >. See ie e. 4-342 | 40,902/11-091 |‘!'|Muschenb. Intr.ad Phil. Nat.i. 417. 
GoLp 
Wires. four os. 3-779 | 30,888 64 Sickingen, Ann, de Chim. xxv. 9 
Gast in Jo25 oe weee| 2°17] | 20,450]19-238 |” !|Muschenb Intr. ad Phil.Nat i. 417. 
TIN 
AiG. See tessa 00-7568} 7,129 Morveau, Ann. de Chim. Ixxi. 194, 
Cast, English block] 0-706 | 6,650 le Muschenb, Intr. ad Phil, Nat. i.417. 
—, idem ...... 0-565 | 5,329)7+295 t idem. 
—, Banca ..., |0-3906] 3,679]7-2165]] |Idem 
—, Malacca ...} 0-342 | 9$,211/6-1256 Idem. 
BismuTu 
Gast: ..| Pave 0-345 | 3,250/9-810)!_,,)|Muschenb. Intr. ad Phil Nat.i.417, 
Ai Res 03193] 3,00819-926 fj" lllIdem,i. 454. 
ZINC, 3 
Wires Sage 2-394 | 22.551 Morveau, Ann. de Chim. ixxi, 194, 
Patent sheet ..,. | 1°762 | 16,616 _ ‘i 
Cast, Goslar, from] 0:3118} 2,937)... Ot ay ay ee 
to ..|0-2855] 2,689]'°"'? Muschenb, Intread Phil. Nat,i.417. 
' Leap, 
Milled : 0-3588] 3,328]11-407\! |By my trial. 
Wires). dees the ,| 0-334 | 3:146]11-348]) |Muschenb. Intr. ad Phil Nat.i.452, 
Witte cae ieekis 0-274 | 2,581]1 i-252\'5|!!Idem, 
MV IB aieahicnon pita 0:2704| 2,547 | |Morveau, Ann. de Chim. Ixxi. 194. 
Cast, English ....}0094 855]11-479 Muschenb. intr. ad Phil. Nat. 1.452. 
Antimony, cast ..|0:1126} 1,060} 4-500 '6}|Muschenb. Inir. ad Phil Nat. 1.417. 
§ In the operation of casting, the surface of the iron always becomes much 
harder, and is more tenacious than the internal parts; hence, the strength of a 
small specimen is always greater than that of a large one. 
Thoseo! M. Ramus, 
however, are unexceptionable in this respect, as the area of ihe section at the 
place of tracture was above nine square inches 
N.B. When the specific gravity ts not referred to a separate authority, 
it is to 
be considered that of the specimen of which the cohesive force is given, 
+ Kirwan’s Miner. vol. ii. 
|| Thomson’s Chemistry, vol, i. 
