SHELLS AS EVIDENCE OF 



THE MIGRATIONS OF 



EARLY CULTURE 



BY 



J. WILFRID JACKSON, F.G.S. 



Assistant Keeper Manchester Museum 

 Honorary Librarian of the Conchological Society of Great Britain and J re /and 



MANCHESTER 

 AT THE UNIVERSITY PRESS 



12 LIME GROVE, OXFORD ROAD 



LONGMANS, GREEN & CO. 



LONDON, NEW YORK, BOMBAY, &'c. 

 1917 



