author Barker, Eugene Campbell, 1874-1956,Potts, Charles Shirley, 1872- joint author,Ramsdell, Charles W. (Charles William), 1877-1942, joint

Barker, Eugene Campbell, 1874-1956,Potts, Charles Shirley, 1872- joint author,Ramsdell, Charles W. (Charles William), 1877-1942, joint author