1

Extentam tumefecit humum, ceu spiritus oris

Tendere vesicam solet, aut direpta bicornis
Terga capri. Tumor ille loci permansit, et alti

Collis habit speciem, longoque induruit ævo.

OF

ACTIVE AND EXTINCT

VOLCANOS;

WITH REMARKS ON

THEIR ORIGIN, THEIR CHEMICAL PHÆNOMENA,
AND THE CHARACTER OF THEIR PRODUCTS,

AS DETERMINED BY THE CONDITION OF THE EARTH DURING THE PERIOD
OF THEIR FORMATION.

BEING THE SUBSTANCE OF SOME LECTURES DELIVERED
BEFORE THE UNIVERSITY OF OXFORD,

WITH MUCH ADDITIONAL MATTER.

BY CHARLES DAUBENY, M.D. F.R.S.

FELLOW OF THE GEOLOGICAL SOCIETY, AND OF THE COLLEGE OF PHYSICIANS
IN LONDON;

HONORARY MEMBER OF THE BRISTOL PHILOSOPHICAL AND LITERARY
INSTITUTION; CORRESPONDING ASSOCIATE OF THE GIOENEAN

SOCIETY OF NATURAL HISTORY AT CATANIA;

PROFESSOR OF CHEMISTRY, AND FELLOW OF MAGDALEN college, Oxford.

πολλα δ ̓ ενερθ' υδεος πυρα καιεται.

London:

PRINTED AND PUBLISHED BY W. PHILLIPS, GEORGE-YARD, LOMBARD-STREET;

AND BY JOSEPH PARKER, OXFORD.