NATURAL HISTORY TRANSACTIONS 



OF 



NORTHUMBERLAND, DURHAM, 



AND 



NEWCASTLE-ON-TYNE, 



BEING PAPEItS BEAD AT THE 



MEETINGS OE THE NATURAL HISTORY SOCIETY 



OF 



NORTHUMBERLAND, DURHAM, AND NEWCASTLE-UPON-TYNE, 



AND THE 



TYNESIDE NATUEALISTS' FIELD CLUB, 1887-90. -* 

 VOL. X. 



LONDON : 



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

 AND 20, SOUTH FREDERICK STREET, EDINBURGH. 



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

 S ^1890. 



ALL EIGHTS EESEEYED. 



