PALvEONTOGMPHlCAL SOCIETY. 



VOLUME LXXIII. 



CONTAINING 



1. THE PLIOCENE MOLLUSCA. Vol. II. Part II. By Mr. F. W. Harmer. Four Plates. 



2. THE ORDOVICIAN AND SILURIAN BELLEROPHONTACEA. Part II. With Title-page 



and Index. By Dr. F. R. Cowper Reed.. Five Plates. 



3. THE CARBONIFEROUS INSECTS. Part I. By Mr. Herbert Bolton. Four Plates. 



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ISSUED FOR 1919. 



LONDON: 

 PRINTED FOR THE PAL^ONTOGRAPHICAL SOCIETY. 



AOENTS FOR THE SOCIETY 



DULAU AND CO., LTD., 34-36, MARGARET STREET, CAVENDISH SQUARE, W. 1. 



JULY, 1921. 



