94... Morey on Mineral Waters, Se. 
mence On the upper surface and — gradually down- 
wards, as in the sulphate of soda, but began to form round 
_ the.small pieces of nitre which were thrown in. _ 
er particulars might be stated, but as the phenomens 
are Swabahiye familiar to you, I omit them. 
he above experiment is another proof that atmospheric 
pressure is not essential to the crystalization of salts, nei- 
ther could the phenomena be ascribed to the sudden ab: 
struction of a portion of heat from the liquid on the admis- 
of air, as the crystals were not first formed on the 
surface; besides, I found in one or two- instances, the fluid 
erystalized throughout, when there was-no exposure to the 
air. 
From the numerous experiments on sali erystalization, 
made by Dr. Coxe of Philadelphia,* and Professor Ure of 
the Glasgow Institution, no correct inferences, it appears, 
can as yet be deduced from the facts. The last gentleman. 
supposes tl at "gue ——- may be the agent cr ge 
ient [have 
‘ . cu in th tl 
Aeseribed, be called the’ pe Nite. Sulphate of Potash? 
ake: XV. On Artificial Mineral Waters, with some re- 
- marks on Artificial | lek? ae Swit ceases “A Or- 
ae nore a tre. 
: arse ee TO PROFESSOR sieiwes “= ar =, 
—s 
Possiniy something for the Anoarioart Journal. fay ie 
selected from the following thoughts and experiments, the 
object. of which is to furnish, at a cheap rate, an abundant 
supply of light for sana oe: and also to multiply 
fountains, such as those Saratoga, &e. at such an 
expense, and in such quantities and: situations, that the calls 
sedhpocessities of every one ey be enpenends —_—* 
ee sal 
4 "= oe tial See Aunals of Philosphy, Vol. VI. page x. 
a Sesibred of Science and Arts, by Rives Vol. ¥.; ae 106 
