MEMOIRS 



OF THE 



BOSTON SOCIETY OF NATURAL HISTORY. 



VOLUME III. PART I. NUMBER II. 



THE EARLY TYPES OF INSECTS: 



OR THE ORIGIN AND SEQUENCE OP INSECT LIPE IN PALAEOZOIC TIMES. 



By SAMUEL II. SCUDDER. 



BOSTON : 

 PUBLISHED BY THE SOCIETY. 



March 6, 1879. 



