18 REPORT—1850. ΄ 
The first five columns in Table II. show the linear expansion for 1° (Fahr.) of seyen 
metals, at temperatures between 32° and 212°, extracted from the works of the author, 
named at the head of each. ‘The last column contains the average linear expansion from a 
series of experiments between 30° and 150°. . 
TABLE IY. 
Amount of expansion and contraction for 1° (Fahr.) of the wooden rods, obtained at 
temperatures between 44° and 80°. 
"“ sm 
Pine, St. John’s. | Pine, varnished. Cedar. Cedar, varnished, Baywood. Baywood, varnd, 
Expan. |Contrac.| Expan. |Contrac.| Expan. contrac. Expan. |Contrac.) Expan.|Contrac.) Expan. |Contrac. 
02036)....:.... ὌΖΟΘθΙ ον ΠΤ {DUG τ τους τ Δν ΤΕΣ ΣΕ bedsecacd ΠΘΌΣΙ Το ΠΣ "0294 1/)......... Fine. : 
*00932)...:..:. °00466)......... G15)" a *00466)......... *OVIGH|! 5. ἐν *01165)...... ...|Dry. 
*00357)......... Ol431 ikea OOL 78]. οἷς Ὅ2772|:.«. 1.2 ὍΟ989!......... Ὁ02146!......... Dull. 
*00281)......... “OLOS 1 |Sirecees *00469)......... ‘OLB 94). ἐξ ῖς οὖ ὍΟ562].........{"02251]......Ψ..«]ΟἸἹσπᾶν. Ὁ 
*03606)......... 04964........... *O3162),...0.3--| ᾽04Β52),.....,ι». Ὁ4972]... .ἰ.... *08503)......... 
0090 1): ceceos| O24 ll πὸ eee 00790)......... °01610)...... ves] OLZ43i.0.5.. sos) (O2120| snes cous 
TaBLe V. 
Amount of expansion and contraction for 1° (Fahr.) of the wooden rods, obtained at 
temperatures between 44° and 144°. 
Pine, St. John’s.| Pine, varnished. Cedar. Cedar, varnished. Baywood. Baywood, varnd. 
Expan. |Contrac.| Expan. |Contrac.) Expan. |Contrac.| Expan. |Contrac,| Expan. |Contrac, 
Expan. |Contrac. 
κέ} UU IIT GUOUY cosceceeelenenencne| UOSIL)seneneesiccccencesiseseesrses| UVLO)... scenes 
wveeseeoe| ULL 0)!,..,......, UULLO)..ccceeeelsevnnsersleeeescers 
saw reewee| UULDD scene eeeee| UOEOL ccc ccerelsereeeeeelereenanae 
έν. UU PLE) “UUULS casccecesleneereeee 
*00575} -02379) 01689) 06153) -00123) -09448)......... 01070) - 
00563) 
00153) -00123) - | A oot 01070) 01316) 01206) 00846) 00071 
00575] -00793 
TaBLe VI. 
Amount of expansion and contraction for 1° (Fahr.) of the wooden rods, obtained at 
temperatures between 34° and 134°. 
Pine, St. John’s, | Pine, varnished. Cedar. Cedar, varnished'| Baywood. Baywood, varnd. 
Expan. |Contrac.| Expan. |Contrac,) Expan. |Contrac.} Expan. |Contrac, 
Expan. |Contrac. Expan. |Contrag, 
κε ULE). cee ewee! UU LL lesen eeene| VELL Ti eenseneee| UL EL tisensnenee 
aeeeee 
weveseeee| UU TOO seesevees| UUSUU],..ceeeee 
δ εν ξ εξ» *03597}......... / *00686)......... °04188)......... Ξ 
νσϑό α ' 
01059)..... “6: }}1990]......;..... *00228).......0 *01396)......... : soos oon LOL OeG 
