The encyclopaedia britannica : a dictionary of arts, science, literature and general information. - 11th ed. - Cambridge : The University press, c 1911. - Vols. : Ill. ; 30 cm. V. 27- Tonalite to Vesuvius ; 314 314 Subjects--Topical Terms: Encyclopedias and dictionaries. Dewey Class. No.: 032 / E19