Ch == 
pe eo 7H 
i PR ANOH | 
GICAL, SOCIBTY | 
ee 
MOTs ee Nas No. 5. 
aoe Brackenridge Clemens, 
Died 1867. 
_PHILIP P. CALVERT, Ph.D., Editor. 
E. T. CRESSON, Jr., Associate Editor. 
HENRY SKINNER, M.D., Sc.D., Editor Emeritus. 
Coe Apvisory COMMITTEE: 
EZRA T. CRESSON. J. A. G. REHN. 
PHILIP LAURENT, ERICH DAECKE. H. W. WENZEL. 
PHILADELPHIA : 
Tue ACADEMY OF NATURAL SCIENCES, 
LOGAN SQUARE. 
Entered at the Philadelphia Post-Office as Second-Class Matter. 
