THE 
AMERICAN NATURALIST, 
ay : AN ILLUSTRATED MAGAZINE 
OF 
NATURAL HISTORY. 
EDITED BY 
ALPHEUS S. PACKARD ann EDWARD D. COPE. 
ASSOCIATE EDITORS: 
W. N. LOCKINGTON, Dep. oF GEOGRAPHY AND TRAVELS. 
Dr. GEO. H. WILLIAMS, Dep. aeRO MAG ne 
ProF. C. E. BESSEY, DEPARTMENT OF BOTA 
JOHN A. RYDER, DEPARTMENT OF e. i 
ProF. HENRY SEWALL, DEPARTMENT OF PHYSIOLOGY. 
ProF. O. T. MASON, DEPARTMENT OF ANTHROPOLOGY. 
Dr. C. O. WHITMAN, DEPARTMENT OF MICROSCOPY. 
VOLUME XIX. 
