C s*5 ] 
great variety are found in fearching mountains, vot- 
ing caverns, and defcending into mines. There are 
few of the natural ids, accufiomed to thefe refearches, 
who fhall obferve the bafaltes above-mentioned, but 
will be inclined to confider them as fo many cryflal- 
lifations. I do not think, that the great extent of 
thefe maffes, which have been difcovered, and the 
bignefs of the {tones, which compote them, form 
any objection againtt this notion. 1 am, with very 
great elteem, 
S I R, 
Your molt humble 
and mod obedient fervant, 
A. Trembley. 
LXXXVIII. An Account of a Work pub - 
lifhecl in Italian ^ Vitaliano Donati, M. D. 
containing , An EBay towards a Natural Hi- 
ftory of the Adriatic Sea : By Mr. Abra- 
ham Trembley, F. R. S. Tranjlated from- 
the French, by Thomas Birch, D. D. Secret. 
R. S. 
Read April i, r a T] I S work of Dr. Donati, printed 
1 756 JL at Venice in 175-0, is written in 
Italian, in the form of a letter addreffed to Mon- 
hgnor Leprotti, phyfician to the Pope, dated atKnitz, 
on the borders of Bofnia, the 2d of November, 1748. 
This letter contains but a {mail part of the obferva- 
tions 
