The publication of Dr. Core’s copious records of shale-barren plants suggests the placing on record of observations as to the occurrences of these plants on other formations than the barrens underlain by Devonian Brallier shale.
The publication of Dr. Core’s copious records of shale-barren plants suggests the placing on record of observations as to the occurrences of these plants on other formations than the barrens underlain by Devonian Brallier shale.