VOLCANOES. 
395 
to be included, as having originated from Hecla, 
whose fire passing through subterraneous chan¬ 
nels has found vent in different places. Leaving 
this question undecided, I confine myself to 
Arngrim Jonas, who, in his Brevis Comment arms 
de Islandia # , relates the first to have taken place 
A. D. 1104; and to have been succeeded by 
others in the years 1137, 1222, 1300, 1341, 1362, 
and 1389* after which the mountain is said to have 
remained quiet till 1538, and then again for the 
space of eighty-one years, when, in 1619, fresh 
matter was vomited forth; and also in 1636, 
1693, and 1766; the latter eruption lasting, 
* This account does not exactly agree with that given by 
Von Troil, who mentions eruptions of Hecla, in 1374, 1390, 
and 1436.—The dates of the eruptions of Etna and Vesuvius 
have also been recorded, and, in the uncertainty of their pe¬ 
riods, resemble what I find respecting Hecla.—They are 
as follows : 
Mount Etna —before the Christian sera, four y —in the years 
3325, 3538, 3554, 3843.—After Christ twenty-seven—1175, 
1285, 1321, 1323, 1329, 1408, 1530, 1536, 1537, 1540, 
1545, 1545, 1554, 1556, 1566, 1579, 1614, 1634, 1636, 
1643, 1669, 1682, 1689, 1692, 1747, 1755, 1766. 
Mount Vesuvius ;—after Christ—79, 203, 472, 512, 685, 
993, 1036, 1043, 1048, 1136, 1506, 1538 (the eruption at 
Puzzole), 1631, 1660, 1682, 1694, 1701, 1704, 1712, 1717, 
1730, 1737, 1751, 1754, 1760, 1766, 1767, 1770, 1771.— 
Sir W. Hamilton’s Campi Phlegrcci, p. 51. 
