THE 



EDINBURGH NEW 



PHILOSOPHICAL JOURNAL, 



On the Site of the Ancient City of the Aurunci, and on the Vol- 

 canic Phenomena which it exhibits ; with some Remarks on 

 Craters of Elevation, on the Distinctions between Plutonic 

 and Volcanic Rocks ^ and on the Theories of Volcanic Action 

 which are at present most in repute. With Two Plates. By 

 Charles Daubeny, M.D., F.K,.S., Professor of Chemistry 

 and Botany in the University of Oxford. Communicated by 

 the Author.* 



The lively interest, which, of all classes perhaps of physi- 

 cal phenomena, the operations of a volcano are best calculated 

 to inspire, has been my principal motive for undertaking 

 three journeys, at intervals of nearly ten years apart, to the 

 south of Italy ; on my return from each of which, I felt it a 

 matter no less of duty than of inclination, to communicate 

 some account of what I had observed to such members of 

 my own University as felt any curiosity in researches of this 

 description. 



Accordingly, soon after I came back from my first visit to 

 Italy in 1824, I submitted my views with respect to the ge- 

 neral nature and origin of volcanoes, in some lectures delivered 

 in this place, which have been incorporated in a work after- 

 wards published by me, but for some time past out of print.f 



In these lectures I maintained, by an appeal, more parti- 



* Read to the Ashmolean Society of Oxford. 



t Description of Active and Extinct Volcanoes. 1 vol. 8vo. London, 1826, 



VOL, XLI. NO. LXXXII. — OCTOBER 1846. P 



