THE 



CAMBRIDGE NATURAL HISTORY 



EDITED BY 



S. F. HABHEB AND A. E. SHIPLEY 



VOLUME II 



FLATWORMS AND MESOZOA 



by F. W. GAMBLE 



NEMERTINES ROTIFERS 



by L. SHELDON by M. HARTOG 



THREAD-WORMS, SAGITTA, GEPHYREA AND 

 PHORONIS 



by A. E. SHIPLEY 



EARTHWORMS AND LEECHES 



by F. E. BEDDARD 



POLYCHAET WORMS POLYZOA 



by W. B. BENHAM by S. F. HARMER 



Reprint Edition 



1959 



CODICOTE, ENGLAND WEINHEIM, GERMANY 



WHELDON & WESLEY, LTD. H. R. ENGELMANN (J. CRAMER) 



