on some of the leading Doctrines of Caloric, Fc. 95 
TABLE III. 
Elastic Forces of the Vapours of Alcohol, Ether, Oil of Tur- 
pentine, and Petroleum or Naphtha. 
Alcohol sp. gr. |, Alcohol sp. gr. 
Ether. 0-813. ° | 0-813. Petroleum. 
& |Force of e Force of! 
@ |Vapour.||} o |Vapour.| 
B a 
Force of E Force of 
Vapour. 2 Vapour. 
Temp. 
“ - 
34° | 620 32 0-40 || 193°3| 46-66 || 316° | 30-00 
44 8-10 40 0:56 1963! 50-10 || 320 | 31-70 
54 | 10-30 45 0-70 || 200 53-00 || 325 | 34:00 
64 | 13-00 50 0-86 || 206 60-10 || 330 | 36-40 
74 | 16-10 55 1:00 || 210 65-00 || 335 | 38-90 
84 | 20-00 60 1:23 || 214 69 30 || 340 | 41-60 
94 | 24-70 65 1-49 216 72-20 || $45 | 44-10 
104 | 30-00 70 1:76 220 78-50 || 350 | 46-86 
75 210 || 225 87-50 || 355 | 50-20 
2nd. | Ether. 80 9-45 230 94-10 || 360 | 53-30 
| 85 2-93 932 97-10 || 365 | 56-90 
105° | 30:00 |; 90 3-40 236 | 103-60 || 370 | 60:70 
110 | 32-54 95 3:90 238 |106-90 || 372 | 61:90 
115 | 35:90 || 100 450 || 240 | 111-24 || 375 | 64°00 
120 | 39:47 || 105 5-20 || 944 |118-20 || 
125 | 43-24 || 110 | 6-00 | 247 |12210 || Oil of Turpen, 
130 | 47-14 || 115 | 7:10 || 248 |196-10 ss 
135 51-90 ; 120 8-10 || 2497 /1131-40 Er Force of 
140 | 56-90 |) 125 9-25 25) |132-30 ® | Vapour. 
145 | 62:10 |, 130 | 1060. || 252 |138-60 || © 
150 | 67-60 | 135 | 1215 || 2543 | 143-70 = DE 
155 | 7360 | 140 | 13-90 || 258-6|151-60 Rea nates 
160 | 80-30 | 145 | 15-95 260 | 155-20 |) 319 sa 50 
165 | 84:40 | 150 | 18-00 262 | 161-40 || oe | 5-90 
170 | 92-80 | 155 | 20:39 || 264 1166-10 || 345 | 37.06 
175 | 99-10 | 160 | 22-60 eer iti 
180 |108:30 | 165 | 25-40 Yael Hoon 
185 [116-10 |, 170 | 28-30 i 
Pan) Vine: 330 | 42.10 
190 |124:80 | 173 | 30-00 Mae 
195 |133°70 || 178-3| 33-50 poses te 
1900 142-80 || 180 | 34-73 eae See 
205 |151-30 || 1823} 36-40 | aap vliepat 
210 {166-00 || 185-3] 39-90 
190 | 48:96 350 | 53:80 
354 | 56:60 
357 | 5870 
360 | 60.80 
362 | 62-40 
Remarks on the preceding Table. 
The ether of the shops as prepared by the eminent London 
apothecaries boils generally at 112°; but when washed with 
water, or redistilled, it boils at 104° or 105°. [t may by rectifi- 
cation, however, he made to boil at a still lower temperature. 
* Concerning the boiling point of oil of turpentine, curious (may 
we say ridiculous) discrepancies exist in our systems of chemistry. 
Dr. Murray, for example, in the table of the scale of temperature 
at 
