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Experiment designed to show the relationship between soil and changes in the vegetational cover.
(1939)
During the summer of 1938 a long time study was inaugurated designed to show the relationship between the soil and the vegetational cover in the region of Douglas and Burt Lakes in the western part of Cheboygan County, ...
Experiment designed to show the relationship between soil and changes in the vegetational cover.
(1938)
During the summer of 1938, a long-time study was inaugurated designed to show the relationship between soil and vegetational cover in the region of Douglas and Burt Lakes in the western part of Cheboygan County, Mich. The ...