152 Miscellanies. 
No. 2. Bottle—Solution of nitrate of silver: tube—fused chlo- — 
ride of sodium. Water passed to the salt, but no chloride of silver 
in either. ys : 
No. 3. Bottle—Solution of muriate of lime: tube—crystals of ad 
oxalic acid. Water remained with the lime. Slight sublimation of — 
oxalic acid in the tube, but rising no higher than the highest part of 
the original mass. A drop or two of pure ammonia produced, in the 
solution, a slight precipitate of oxalate of ammonia. Hence oxalic 
acid is volatile at common temperatures. : 
No. 6. Botile—Solution of potash: tube—white arsenic in pieces 
and powder. Arsenic unchanged. Solution of potash had acted 
powerfully on the glass, dissolving the silica, and becoming a soft 
solid. It contained no arsenic. Hence this substance, though vole- 
tile at 600°, had not risen in vapor. 
_ No. 8. Bottle—Half sulphuric acid, half water : tube—pieces of 
muriate of ammonia. No change or transference whatever. 
No. 9. Bottle—Solution of persulphate of iron: tube—crystals’ 
ferro-prussiate of potash. Both unchanged. 1 eae 
No. 10. Bottle—Solution of potash: twbe—fragments of -ealo- 
mel; potash acted on the glass. No trace of volatility in the cal- 
omel. j 
No. 11. Same as the last, except corrosive sublimate in leu of 
calomel. The corrosive sublimate had sublimed, and formed crys 
tals under the stopper. ae f 
No. 14. Bottle—Solution of iodide of potashi: tube—chloride 
lead. Both unaltered. 
No. 15. Bottle—Solution of muriate of lime: tube—crysias 
carbonate of soda. Part of the water passed to carbonate of soda: 
neither of the salts volatilized or changed. A 
No. 16. Bottle—Dilute sulphuric acid: tube—nitrate of ammo 
nia in fragments. Nitrate became slightly moist, acid found to 
tain nitric acid. 
No. 17. Bottle—Solution of persulphate of copper: tube—t1yr 
iy 
tals of ferro-prussiate of potash. Crystals had attracted most of a 
water from the cupreous salt. Neither salt had been volatilized- ; : 
From these experiments it would appear that there is no ees 
believe that water, or its vapors confer volatility in the slightest | 4 
gree, upon those substances that alone have their limits of vaf as 9 
tion at temperatures above ordinary occurrence, and conseq! ie 
that natural evaporation can produce no effect of that’ kind 0” 
atmosphere. ies 
