668 
ME. AIET’S ACCOUNT OF THE COXSTEUCTIOX OF 
tity of water employed at once was 11 gallons. The corrections to the theimometers 
and II were still obtained, I beheve, from old thermometers : but, as the comparison 
of L and R with new original thermometers followed closely, I am not quite certain on 
this point. Each number below is the mean of about thhty comparisons : 
E=0“”003587. 
For relative expansion of Bronze 12 and Low Moor Iron. 
Day, 1849. 
Temperature. 
Reading for 
Bronze 12. 
Reading for 
Low Moor Iron. 
November 30.... <|^ 
68-76 
64-41 
r. 
201-5598 
201-0627 
r. 
201-2976 
200-9355 
December 1 ...<^ 
L 
.51-30 
58-88 
57*16 
199- 8867 
200- 5319 
200-3766 
200-1899 
200-5998 
200-4895 
December 3 
67-65 
201-3903 
201-1642 
December 5 
78-81 
202-5139 
201-9086 
December 6 ... 
34-82 
61-15 
200-2089 
200-7820 
200-4075 
200-7572 
December 8 ... | 
48-46 
75-45 
199-6225 
202-1283 
200- 0354 
201- 6404 
December 10 ... ^ 
68-92 
64-13 
201-5636 
201-0967 
201-2943 
200-9797 
From these, the excess of expairsiorr of 36 iirches of Broirze above Irorr for 1° Faheex- 
HEiT was inferred to be 0’'’03318. 
For absolute expansion of Low Moor Iroir, Mr. Sheepshaxks compared the higher arrd 
lower temperatures orr each of the following days: Nov. 30, Dec. 1, Dec. 6, Dec. 8, 
Dec. 10, as given hr the last Table. From these he obtairred, for 1° Faheexheit, 
Absolute expansion of 36 irrches of Low Moor Irorr=0’'-06095. 
For absolute exparrsioir of Brorrze 12 arrd Brass 2. 
Day, 1850. 
Temperature. 
Reading for 
Bronze 12. 
Reading for 
Brass 2. 
f 
3§-06 
r. 
198-8437 
r. 1 
198-8780 
January 24 < 
51-73 
200-3481 
200-4152 
67-82 
201-8598 
201-9467 ! 
! 
January 25 | 
70-14 
202-0599 
202-1320 
45-85 
199-7360 
199-7850 
January 26 | 
41-95 
70-46 
199-2963 
202-0152 
199-3419 
202-0959 
May 4 ^ 
54-23 
200-0187 
200-0701 ' 
63-87 
201-1187 
201-1719 
