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Show 154 tn h s of go?d mo~ld cove~s a red clay; below, on the . cond~ry hill, ~hiCh ca~r~e~ evident marks of recent Iorma~wn, no fhnt, or s1hcwus stone, is found; the ~alcanous rock conceals all from view, and is, itself, frequently co~ered by much fine rich earth. It would sce1n that. this con.1pound, precipitated from the hot waters, yields easily to the influence of the atmos. ph~~e; for where ~he wat~rs cease to flow over any pot t1on o~ the rock, It speedily decomposes; probably ~ore rapidly from the heat communicated from the Interior of the hill, as insulated· masses of the rock are observed to remain 'vithout change. The cedar, the wax myrtle, and the cassina yapon, all ev~rgreens~ attach themselves particularly to the ~alcunous regwn, and seem to grow and thrive even In the clefts of the solid rock . . A spring, enjo~ing: a freedom of position, proceeds ~1th gr~at regulanty In depositing the matter it holds In solution; the border or rim of its basin forn1s an elevated ridge, frmn whence proceeds a glacis all around, where the waters have flowed for some time over one part of the brim; this becomes n1ore elevated and the water has to seek a passage where there isles~ resistance; thus forming, in miniature a crater re. sembling in shape the conical summit ~f a volc~no !he hill being steep ~hove the progress of petrifactio~ JS stopped on that side, and the waters continue to flow ~nd spread a.broad, incrusting the whole face of the hill below. The last formed calcarious border of the circular basin is soft, and easily divided· at a s~a!l depth !t i_s more compact; and at the de~th of six Inches It IS generally hard white stone. If the bottom of t~1e ba~in is stirred up, a quantity of the red calx of Iron nses, and escapes over the summit of the crater. Visitants _to the .hot springs having observed shrubs and trees with their roots in the hot water have been induced to try experiments, by sticking branches of t-rees in the run of hot water. iome branches of the ' \ !55 wax myrtle were found thrust into the bottom of a sp~ing run, the water of which was 130°. by Fahrenheit's thermometer; the foliage and fruit of the . branch were not only sound and healthy, but at the ~urface of t?e "':'ater roots were actually sprouting from It : on pulhng It up the part which had penetrated the hot mud was found decayed. The green substance discoverable at the bottom of the hot springs, and which at first sight has the appearance of plush, on examination by the microscope, was found to be a vegetable production. A film of green matter spreads itself on the calcarious base, from whic~ rise fibres more than half an inch in length, forming a beautiful vegetation. Before the microscope it sparkled with innumerable nodules of lime, some part of which was beautifully chrystalized. This circumstance might cause a doubt of its being a true vegetable, but i~s great resemblance to some of the. mosses, particularly the byssi, and the discovery whiCh Mr. Dunbar made of its being the residence of animal life, confirmed his belief in its being a true m?ss. After a diligent search he dicovered a very mmute shell fish, of the bivalve kind, inhabiting this moss; its shape nearly that of the fresh water m~scle; the colour of the shell a greyish brown, with spots of a purplish colour. When the animal is undisturbed it opens the shell, and thrusts out four legs, very transparent, and articulated like those of a quadruped; the extremities of the fore legs are very slender and sharp, but those of the hind legs somewhat broader, apparently arrned with minute toes: from the extremity of each shell issues three or four forked hairs, which the anhnal seems to possess the power of moving; the fore legs are probab1 y formed for making incisions into the moss for the purpose of procuring access to the juices of the living plant, upon which, no dot.lbt, it feeds: it may be provided with a probe .. sis, although it did not appear while the animal \Va,s under examination : the hind legs are well adapted for |