Subject ASC0003tdm
    The geological magazine, or, Monthly journal of geology.
    Decade 3:v. 5 (1888), Page 448 (1888)
    Smithsonian Libraries
    
      BHL Page 30533946
    
    
Keywords
Chart of contour lines and distance of the two axes by Dr HJ Johnston Lavis - On the form Vesuvius. Diagrammatic sketch of a cone truncated by a crater around an axis Vesuvius crater cone sketch-section Monte Somma Somma volcano figure crater survey truncated