xxiv PREFACE. 



allowed to have fome fhare in it, for being, 

 in point of time, anterior to fo many late 

 difcoverers of Volcanos and volcanic Bafaltes; 

 for having confirmed it by fair observations ; 

 and, finally, for having improved it by fome 

 new fafts and views; which, in my late Ac- 

 count of the German Volcanos, I have laid 

 before the public. Their chief purpofe and 

 tendency is, the conjecture, " that the prif- 

 " mat teal bafaltes, being, in thofe places 

 " where I obferved them, and in many 

 " others, near or below the level of the fea, 

 " are to be confidered either as lava- cur- 

 " rents, cooled in fea- water, or cooled in 

 " themfelves under ground without any 

 " eruption V The fame reafons will fland 

 for Meff. Ferber* and Defmsireft 3 , and for 

 me % in refpect to the firft fcientific de- 

 fcriptions of the various volcanic, or volca- 

 nico-marine, or volcanic-paraiitical foffils, 



- jv 



1 Account of fome Gennan Volcanos, 



a Letters from Italy. , 



3 Memoire fur les Volcans en Auvergne. . 



4 See Account of German Volcanos, and tlic Notes 

 and Index to this tranflation. 



found 



