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NATURAL HISTORY 





TRANSACTIONS 



NORTHUMBERLAND, DURHAM, 



NEWCASTLE-UPON-TYNE. 



VOL. X.— PART il. 



PRICE SIX SHILLINGS AND SIXPENCE. 



WILLIAMS AND NORGATE, 



14, HENRIETTA STREET, COYENT GARDEN, LONDON; 



AND 



20, SOUTH FREDERICK STREET, EDINBURGH. 



F. & W. DODSWORTH, NEWCASTLE-UPON-TYNE. 



1890. 

 (All Rights Reserved.) 



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