Goodisson, William: A historical and topographical essay upon the islands of Corfu, Leucadia, Cephalonia, Ithaka and Zante: with remarks upon the character manners and customs of the Ionian Greeks : descriptions of the scenery and remains of antiquity discovered therein, and reflections upon the Cyclopian ruins, illustrated by maps and sketches (London: Thomas and George Underwood, 1822)

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C. Of B was dissolved by dilute vitr. acid,
1 grain, leaving 150—probably, silex.
Experiment, No. 7.
Calcareous Spar. Catechorihill.
Colour, very light transparent ochre : form, a
regular oblique angular tetrahedral prism, the ter-
minal planes set obliquely upon the lateral planes.
The thin plates almost as transparent as glass of the
same colour.
A. 300 grains finely powdered were exposed in a
crucible to a heat less than red, for one hour, lost 14,
grain.
B. To 200 grains of A, It ounce of dilute muri-
atic acid were added. Mixture effervesced strongly,
and in one hour and a half lost 50 grains, equal to
111| of carbonate of lime.
C. The insoluble, part washed and dried in a
crucible, amounted to 50 grains.
D. The remaining soluble part of B was, probably,
alumine.
Experiment, No. 8. ■
Pumice, the mineral found upon the borders of the
Lake at Santa Maura.
Specific gravity, much less than water, always
floats upon it.
Colour, ash gray, with a few weakly shining-
spangles interspersed : between spongiform and
fibrous : fine earthy fracture.
A. To 150 grains were added 1* oz. dilute muri-
atic acid. No effervescence.
B. The acid was allowed to remain over it for
many hours, was then decanted and the insoluble
R 2