11 
CONTENTS. 
Art. IX. Journal of a Tour to the Coast of the Adriatic Sea, 
and to the Mountains of Carnioia, Carinthia, Ty- 
rol, Saltzburg, and Bohemia, undertaken chiefly 
with a view to the Botany and Entomology of 
those countries. By Dr David Henry Hoppe 
and Dr Henry Hornschuch. (Continued from 
Vol. VIII. p. 326.) - * . 82 
X. On the Existence of Two New Fluids in the Cavi- 
ties of Minerals, which are immiscible, and pos- 
sess remarkable Physical Properties. By David 
Brewster, LL. D. F. R. S. Lond. & Sec. R. S. 
Edin., &c. 94- 
Sect. I. On the Existence of a New Fluid in the Cavities 
of Minerals, - 95 
Sect. II. On the coexistence of two Immiscible Fluids, of 
different Physical Properties, in the Cavities of Minerals, 
and accompanied with a Vacuity, _ - 99 
Sect. IIL On the Phenomena of Two Immiscible Fluids 
without a Vacuity in the Cavities of Minerals, - 101 
Sect. IV. On the Changes which these Fluids have un- 
dergone in particular Crystals, - - ib. 
Sect. V. On the Vaporisation and Decomposition of the 
New Fluid at low Temperatures^ when enclosed in the 
Cavities of Minerals, - - - ib. 
Sect. VI. On the Phenomena of the Two New Fluids 
when taken out of the Cavities, - - 104 
XI. Observations on the Natural History and Structure 
of the Aquatic Salamander, and on the Develop- 
ment of the Larva of these Animals from the Egg, 
up to the perfect Animal. By Mauro Rusconi, 
M. D. Member of various Societies, and lately Lee- > 
turer on Physiology in Pavia, - 107 
XII. Outlines of a Geological Comparative View of the 
South-west and North of France, and the South 
of Germany. By Ami Boue', M. D. Member of 
the Wernerian Natural History Society, &c. 128 
XIII. Historical Account of Discoveries respecting the 
Double Refraction and Polarisation of Light. 
(Continued from Vol. VIII. p. 256-) 
Sect. IV.— -Account of the Experiments of the Abbe 
Hauy, - 14S 
XIV. Notice respecting a Polished Flint Celt or Battle- 
axe, remarkable for its size and workmanship, 
found at Claremont, the property of James Nairne, 
Esq, « - 152 
