GEOLOGICAL ACHIEVEMENTS 1929
GEOLOGY 1929
by ALFRED C. LANE
Professor of Geology and
Mineralogy, Tufts College
PERHAPS the great achievement of 1929 is the enlistment of more precise physical and chemical methods to help in unraveling the history of the earth and its structure.   For instance, by studying its electric conductivity, more conductive strata have been located perhaps thirty miles down.
Again, the [...]
