The phenomena of volcanic action showing…

Spectacular map of the world’s volcanoes, from the extra large sized issue of Johnston’s, Physical Atlas of Natural Phenomena.There is a colour key on the left with an explanation of the colours used in the map.

Insets map titles;

Enlarged map of the principal volcanic series of the new world, Enlarged map of the principal volcanic series of the old world, Enlarged map of northern India showing the earthquake districts, Iceland, chiefly according to Krug von Nidda. Island of Santorini on an enlarged scale, Eaheinomauwe, North I. of New Zealand by Leopold von Buch. Canary Islands, Hawaii Archipelago or Sandwich Islands, Greek Islands according to Leopold von Buch, Earthquake region of the United States and W.I. islands, Volcanic district of Lower Italy, Jorullo in Mexico, A. v. Humboldt, Tankuban Prahu in Java, S. Muller.