Title: Contour map on the upper surface on the Boston blue clay, Boston, Mass. ; Profile of ancestral Charles River which drained blue clay surface of Boston /
Authors: Judson, Sheldon.; Barghoorn, Elso S. 1915-1984.; Johnson, Frederick, 1904-; Boston Society of Civil Engineers.
Publisher: Phillips Academy, The Foundation,
Year: 1949
Subjects: Clay Massachusetts Boston Maps.; Geology Massachusetts Boston Maps.; Boston (Mass.) Maps.; Charles River (Mass.) Maps.