Hecla or Hekla, the loftiest of 20 active volcanoes in Iceland (5102 ft.); is an isolated peak with five craters, 68 m. E. of Reykjavik; its most violent outbreak in recent times continued from 1845 to 1846; its last eruption was in March 1878.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Heckmondwike * Hectic Fever