EXPANSION. 255 
ee tet Puce 26.) fr . ; ; “ec " " th . Expansion, 
Phu) oe per Pet seen ie . For 180° F._ For 1° F. m 
SYD) Solid Bodies. ©” | Tn tength ngth- “Tn buts fa length | In bulk. | >) Remarks. Na ost 
Platina a 856 | .002570 |.0 orda. 
’ Rad {0000086 ) € laste of ‘ 
00383 : Berthoud. 
.003258 |.00000602|.00001805/Smeaton 
.003332 |,00000617}.0000185 |Roy. 
.003337 |.00000618 1853| Lavoisier. 
. 003438 |. D J Y vat 
003379. 5 Trans, 1795, 428. 
008454 Smeaton, © 
008476 voisier. ak 
bat Gl zt '985/Troughton. ich, IX. p. 230. 
003679, 2)5meaton. - r 
-00367 Muschenbroek. 
ooatl |. 3 |Muschenbroek. 
003472 | 00001926|Bordz 3 
-008779 Smeaton, 
: rou r7 
.00400 Muschenbroek. 
- 00417 Muschenbroek. 
5 me Be 6k .004180 3} 2 320|Smeaton. 
gold,—..- - ~ | 00438 |.0000081-|,0000243 |Muschenbroek. 
Goulds ors Ves iicrrs veg OOS 0045. |.0000093 |.000025. jEllicott, by comparison. 
| Gold wire, CaS of" O".. 0, Sw 00167 00502 0000093 0000279 Muschenbroek, 
Copper hammered, . . .« |,001700 {| .005109 |.00000944),00002833/Smeaton. 
Copper, . . . + - - 00191 | 00573 |.0000106 |,0000318 {Muschenbrock 
eee or ime * : .001783 005359 1.000029 d 
eertamabang, Poses mb | o018564 | .009576 |.00001091|,00009092|Roy. 
Cast brass, . . . . - ~ |.001875 | .005635 |.00001042/.00003125|Smeaton. 
English plate brass rod, ._ . |.0018928 | .005689 |.00001052/,00003156|Roy. 
English plate brass trough, . |.0018949 | .005695 |.00001053),00003159|Roy. © 
ee eee me ers -00001066,00003200 oughton. Nich. IX. p. 230. 
Brass wire, . . . - » + |,001933 | .005811 |.00001074|.0000322 |Smeaton. : 
NOD) oi cite wie eo 4 @ LOURIO .00648  |,0000120 |,0000359 |Muschenbroek. 
8, tin. 1,. «.- ° - 001817 005461 '00001009,00003028|Smeaton 
Pe She AS x peonee 005681 Obie ne Ya api lerbe us ee 
- - - = .0021 0063 — |,00001167].000035 cot comparison. 
— = = = |o0212 _ | 100636 [0000118 0000354 |Muschenbrock. 
-_ - =- — $= _  .00001157|.000084 |Troughton. 
| Brass 16, tin], . . . + te pees .00001056).00008168|Smeaton. - ' 
Speculum metal, . . .  . |,00193: 11 |,00001074).00003222)Smeaton. ‘ 
Spelter solder, brass 2 zincl, |: 006187 |.000011 3430|Smeaton 
ine pewter, . . . . « |,002288 .00001238).000037 1 4|Smeaton. 
Grain tin, «. . . «_ . |.002483_ | .007469 00001 379}.00004137/Smeaton 
Tin, «.. . . . « . . |.00284 | .00852 |.0000158 |.0000474 |Muschenbroek 
Soft solder, lead 2, tin 1, . 1.002508 | .007545 |,00001 00004179|Smeaton. 
ae Sige foe ae ee .002692 .008095 00001 00004888)Smez ron 29 
ON Tn Pe | | 008625 |.00001592.00004776)Smeaton. 
nica slice looses | Lonose [0000191 [0000573 [Muschenboek. °° 
+B MNGi! whe 95S 002942 | .008850 |.00001634/.00004902|Smeaton. igen 
ah ee ce Pai 224 |o9g011 | .009061 |.00001673,.00005019'Sineator 
It has been found, in general, that equal increments From t!number-of experiments made with Prince jy 
of heat produce a expansion at a high tempera- Rupert’s hich are formed by dropping melted ments o 
tare, than they do at alow one. = a Dr Brewster TP AMTTEGT (6. the costrac- 
nett glass into col hed 
'_ The expansion of metallic bodies seems to have some obtain a measure of the expansion of. -when-in a tion of 
- connection with their fusibilities. Platina, the least ‘elvastes When the drops: arev of flint glass, 8!*** 
