YANOSKY, THOMAS M, EVIDENCE OF FLOODS ON THE POTOMAC RIVER FROM ANATOMICAL ABNORMALITIES IN THE WOOD OF FLOOD-PLAIN.. - 42 pages ; ilustrations - U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1296 . In English Subjects--Topical Terms: ASH(TREE)-CLIMAC FACTORSASH(TREE)-GROWTHFLOODS-POTOMAC RIVER Universal Decimal Class. No.: 1296 551.489