Miscellanies. 195 
about sixty-six feet and two-thirds from the shore, and Col. Robin- 
son, attracted by this curious phenomenon, commenced boring an ar- 
tesian well in this place, at the base of a tufaceous rock, the beds of 
which form the neighboring shore. 
Having-bored eight feet in a bed of sandy clay, (argile sablonneuse) 
and eight feet and one-third in a bed of pebbles, a column of water, 
four inches and a half in diameter spouted up in a very abundant jet. 
Three other wells were sunk and reached the water—the fourth was 
twenty-four feet nearer the Cape and the water spouted out from the 
depth of about fourteen feet. 
In this place the .strata was first sandy clay mixed with, stones 
(pierres) eight feet, and the other, small pebbles: mixed with volcanic 
ashes, 6 feet. 
The water of the first three wells ran upon a very hard bed of lava 
‘—that of the last, upon a bed of clay divided into small rounded 
pieces, mixed with water, now fragments of lava, and volcanic ashes, 
which is supposed to be the natural bed of the current. The water 
is tepid, limpid, of an agreeable taste, being supersaturated with carbon- 
ic acid; it possesses very decided medicinal properties, and has effec- 
ted many undoubted cures, among the numorous visitors of the past 
year. Professor Ricci analyzed sixteen livres, (seventeen pounds and 
a quarter,) and obtained the following results. 
Grains. 
Carbonic acid gas - - . 56,5800 
Bicarbonate of soda - - 142.5000 
- of potassa | - 23.0000 
- of magnesia - 80.0000 
Carbonate of lime - - 43.7500 
of iron - - 0.9062 
Sulphate of soda gee 62.0000 
* _ of potassa eee 15.0000 
© of magnesia . . 5.0000 
Chloride of Si - - _ 84,0000 
‘© of potassium - - 31.0000 
Hydrochlorate of maps ee 45.1301 
Phosphate of lime - 2.0000 
se of silica. - - 9.0000 
Peroxide of iron - - 1.6551 
‘of titanium? oe ats ak 
599.5214 
Nearly 0.41 per cent. of the whole weight. 
