266 Scientific Intelligence. 
tion between Marbella and Carthagena. The remarkable and singular 
deposit of quicksilver of Almaden and Almadenejos must have been 
occasioned by the action of the euphotides and other analogous voleanic 
rocks which have burst forth in this district and moulded the mountains 
yielded such wealth to the Carthaginians under Hannibal, and fro 
which we still derive considerable benefit, are certainly contemporane- 
ous with the basalts of Cabo-de-Gata and of Vera, and the trachytes of 
Mazarron. 
Earthquakes are still often felt at Granada and along the coast of the 
province of Alicante, where their effects have been very disastrous. 
Much further in the interior, in the small Sierra del Tremédal or district 
of Albarracia, in the province of Teruel, eruptions and shocks have 
the escape of sulphureous gases when t were young; these same 
h na have occurred during four consecutive months of the pre- 
ceding winter, accompanied by earthquakes, which hav sed con- 
radius of two leagues, They have not however been attended with 
any loss o ife, on account of the inhabitants hastening to abandon 
their dwellings at the first indication of dange 
