An essay on the indigenous malarial diseases of Wyomimg Valley: read, by appointment, before the Luzerne County Medical Society by Dr. John B. Crawford at Wilkes-Barre, Pa., May 11, 1881

An essay on the indigenous malarial diseases of Wyomimg Valley: read, by appointment, before the Luzerne County Medical Society by Dr. John B. Crawford at Wilkes-Barre, Pa., May 11, 1881