The dunes of northwestern Indiana,
Knotts, Armanis F.
The dunes of northwestern Indiana, by A.F. Knotts ... "Photos taken by H.H. Daugherty, Gary, Ind." - [Gary? 1917] - 20 p. illus. (incl. maps) 23 cm.
"Prepared for and published in Indiana Geological Report, 1916." [Forty-first annual report of Department of Geology and Natural Resources, Indiana, p. 11-27]
ca 19000073
Sand dunes.
Geology--Indiana.
Michigan, Lake.
GB635.I6 / K6
The dunes of northwestern Indiana, by A.F. Knotts ... "Photos taken by H.H. Daugherty, Gary, Ind." - [Gary? 1917] - 20 p. illus. (incl. maps) 23 cm.
"Prepared for and published in Indiana Geological Report, 1916." [Forty-first annual report of Department of Geology and Natural Resources, Indiana, p. 11-27]
ca 19000073
Sand dunes.
Geology--Indiana.
Michigan, Lake.
GB635.I6 / K6