Subject ASC0003swc
    The geological magazine, or, Monthly journal of geology.
    Decade 2:v.8 (1881), Page 21 (1881)
    Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    
      BHL Page 32519230
    
    
Keywords
diagram cutting plane tracing geometrical solution geometric problem hot to delineate upon a cuttin plane the trace of a cylindrical or any surface which can be formed out of a folded plane geometric diagramme delineate folded plane geology geometry