DA Pur Adi 7 
A 
MONTHLY JOURNAL OF 
NATURAL HISTORY FOR THE NORTH OF ENGLAND 
EDITED BY 
WM. DENISON ROEBUCK, FL. eg 
era TO AND Ex-PRESIDENT OF THE CONCHOLOGICAL SOCIETY; so Hon. SECRETARY 
YorKSHIRE NaTurRA.ists’ Union; JoinT-AUTHOR OF A ‘ HANDBOOK OF THE 
RATE FAUNA OF YORKSHIRE’; Hon. MEMBER OF T BRADFORD 
ISTS’ AND MicroscopicaL SociETY, CLEVELAND NATURALISTS’ 
on NaTuRALists’ Society, Live 
ETC:; 
Crus, M 
NATURALISTS’ FIELD CLUB} ETC., 
WITH THE ASSISTANCE AS REFEREES IN SPECIAL DEPARTMENTS OF 
J. GILBERT BAKER, F.R.S., F.L.S CHAS. P. HOBKIRK, F.L.S. 
W. EAGLE CLARKE, F.L.S., M.B.0.U GEORGE T. PORRITT, F.L.S., F.E.S 
W. BARWELL TURNER, F.C.S., F.R.M.S 
ALFRED HARKER, M.A., F.G.S 
LONDON: 
LOVELL REEVE & Co. 5, HENRIETTA STREET, COVENT GARDEN, E.C 
M°CORQUODALE & Co. LIMITED, CARDINGTON STREET, EvsTON ; 
Leeps: BASINGHALL STREET 
1893. 
