from Water and other Liquids, &c. 563 
TABLE CONTINUED, 
Sead Yio Tented GREED! Ge MERGE cee 7) RGESELE: 
Mercury. Mercury? a Mercury. 
305- 117. 68 |[312- 125. 851) 319- 133. 86 
306 118. 861313 127, 00] 320-135. 00 
307 120, 03 ||314 128. 15] 321 ———-136. 14 
208— 121. 201/915-1129, 29] 329 137, 28 
309 122, 37 11316 ——-—130, 43] 323-138. 42 
310 123. 53 1|317 131. 574| 324-139. 56 
Sil 124. 69 ||318——_——-132, 72{| 325-140, 70 
On Vapour from Ether, &c. 
We come now to the consideration of vapour 
from other liquids. Some liquids are known to 
_ be more evaporable than water; as, liquid am-~ 
monia, ether; spirit of wine, &c. others less ; 
as, quicksilver, sulphuric acid, liquid muriate of 
lime, solution of potash, &c. and it appears that 
the force of vapour from each in a vacuum is 
proportionate to its evaporability: M. Betan- 
court maintains that the force of vapour from 
spirit of wine is in a constant ratio to that from 
water at all temperatures; namely, as 7 to3 
neatly. My first experiments with spirits of 
wine led me to adopt this conclusion, and natu- 
rally suggested that the force of vapour from 
any other liquid would bear a constant ratio to’ 
