JULY 1902. 



(Published 1st July 1902). 



No. 546. 



( No. 324 of current series.) 



A 



MONTHLY JOURNAL OF 



NATURAL HISTORY FOR THE NORTH OF ENGLAND. 



EDITED BY jiflBW'^ 



fib 



WM. DEN1SON ROEBUCK, F.L.S., 



259, Hyde Park Road, Leeds; 

 with the assistance in spf.cial departments of 

 J. GILBERT BAKER, F.R.S., F.L.S., 

 W. EAGLE CLARKE, F.L.S., M.B.O.U., GEO. T. PORRITT, F.L.S., h.E.S.V 

 ALFRED HARKER, M.A., F.G.S., JOHN W. TAYLOR, F.L.S., 



CHAS. P. HOBKIRK. F.L.S., W. B. TURNER, F.R.M.S. 



Contents: — " 



Infusoria of the Grimsby District -Arthur Smith, F.L.S., F.E.S 



The Yorkshire Boulder Committee and its Fifteenth Year's Work, iqoo-iqoi 



—Percy F. Kendall, F.G.S., and J. H. Howarih, F.G.S. 



The Yorkshire Boulder Committee and its Work— a Retrospect— Thomas 



Sheppard, F.G.S. 



Lincolnshire Ramble in Search of Clausilia rolphVi—C. S. Carter, M.C.S. 



Mosses of Pool, Yorkshire— George B. Savery 



Bulbiferous Forms of Webera annotina-Prof. T. Barker 



The Birds of Rydal Miss Mary L. Artnitt 



Short Notes :— Birds, 223, 224: Mollusca, 228; Lepidoptera, 222; Crustacea, 210; 



Flowering- Plants, 222, 223, 234; Mosses, 234; Alga?, 236 ; Geology, 216; 

 - Palaeontology. 222. 



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