334 Notice of Sketches of Naval Life. 
pears above.* The bottom is an earth, from which pufls up 
hot air: this is strongly impregnated w with egy and deposits 
about each crevice, beautiful small crystals of the mineral: 
in front of the cave is a hot spring; and at its sides are other 
Caney that have ceased to act. 
“There is another one, called by the natives, the Stipsy or 
alum cave. It is near the centre of the island, and was worked 
y the ancients: the alum, as vm & = us, being the best, 
— that of Egypt, that could be procured. ‘Towards the bot- 
m of a high reddish hill, we Gerad a ale on all fours ; and 
eerie our way backward awhile; and then a more 
erect, through a narrow passage, came to a e chamber, one 
hundred and twenty feet long, and with an atmosphere that 
makes the thermometer rise to ninety, in some places to one 
renheit. ear 
with specks of alum, and blown into the consistency of baker’s 
bread, to compare large things with small. The cells, oftena 
foot in length, aré lined on the upper side with crystals of alum; 
some small, but clean and pure, sometimes with a slight green 
nD 
tinge: othe 
delicate white down. Among them are spots, from which are 
suspended sda 3 of ees gypsum, each crystal distinct, and 
falling at the slightest touch. The entrance is lined with 
branchy gypsum ; and ict is scattered over the rocks with- 
out. Advancin ‘from this to the harbour, you come to a cave, 
called Loutra, about ninety feet deep ; ; at the end of which is a 
ng 
with cons medical hoe and pe ccer y use itasa a 
as well as the waters on the shores just below: there are several 
hot springs there, in the sand ; and a still larger mumber, a few 
_ rods in the water: the the rmometer rises to 128° in the spring 
and in the sand, to 135° of Fahrenheit.—Vol. I. pp. 137— 
* This very = Aged fos been examined by Mr. Charles U. Shepard, 
of Yale College to be the e soda alum, anew species in 
mine ately cae a ty Dr. Weipdin See American Journal of — 
Science, ol. X : 
