J. L. Smith on the Artesian Well at Louisville. 177 
it will doubtless flow in undiminished quantity for centuries to 
come, as wells having such deep sources as this, are usually 
exhaustible. 
Nature of the Water —The water is perfectly limpid, with a 
temperature as already stated of 764°, which will be invariable 
all the year round. 
__ Its specific gravity is 1:0118. The solid contents left on evap- 
crating one wine gailon to dryness are 9154 grains, furnishing 
on analysis : 
Grains. 
Chlorid of Sodium, (common salt,) —- - 621°5204 
“ Calcium, - - - 65°7287 
‘ Magnesium, - - - - 14-7757 
“ Potassium, - - - 42216 
“Aluminum, - - . - 12119 
“ ~ Lithium, - - - 0°1012 
Sulphate of Soda, - - - ~ 122957 
“ — Lime, - - - - 294342 
“ Magnesia, - - - - 773382 
“ Alumina, - - - 18012 
“ Potash, - - - - $2248 
Bicarbonate of Soda, - - - 27264 
. eee ee : - ae 
“6 Ma esi % te im . 2- 5 5 
“ bg 156 si - - 03518 
Phosphate of Soda, - SI : 15415 
Todid of Magnesium, ms Pa - a 03547 
Bromid of Magnesium, - : 0°4659 
Silic S je . -  0°8857 
Organic Matter, - i - ‘ 0°7082 
Loss in analysis, - - 2 - 81231 
915°4582 
GASES IN ONE GALLON. 
Sulphuretted Hydrogen, ‘ : - 270050 
Carbonic Acid, - a - - 61720 
Nitrogen, : Pod > « 1°8580 
The analvsi | al methods; but as 
\ ysis was performed by the usual me Rie 
chlorid of lithium ee sought for aiid found, it may be of inter- 
prey. detail the method of research in this particular, as a guide 
to 
Ten gallons of water were evaporated to about two pints, (there 
ostance ’ 
liquid; to this was added one pint of absolute 
