L’eruzione laterale etnea del novembre 1950 — dicembre 1951 Gustavo Cumin OriginalPaper Pages: 3 - 70
Remarks on the eruptive mechanism of the tertiary volcanoes of Egypt A. Rittmann OriginalPaper Pages: 109 - 117
Activity of Hawaiian Volcanoes during the years 1940–1950 Gordon A. Macdonald OriginalPaper Pages: 119 - 179