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NATURAL HISTOEY TEANSACTIONS 



NORTHUMBERLAND, DURHAM, 



NEWCASTLE-ON-TYNE, 



HEIXG PAPERS READ AT THE 



MEETINGS OF THE NATURAL HISTORY SOCIETY 



XORTHUMRERLAND, DURHAM, AND NEWCASTLE-UPON-TYNE, 



TYNESIDE NATTTEALISTS' FIELD CLUB, 1877-79. 

 VOL. VII. 



LONDON : 



WILLIAMS & NORGATE, 14, HENRIETTA ST., COVENT GARDEN; 

 AND 20, SOUTH FREDERICK STREET, EDINBURGH. 



NEWCASTLK-ON-TYNE : F. & W. DODSWORTH. 



1880. 



AF.L RIGHTS RESERVED. 



