JUNE 1903. 



(Published Ut June 1903. 



^u^.^Z. 



No. 557. 



(/Vo. 335 0/ currevt series.) 



MONTHLY JOURXAL OF 



NATURAL HISTORY FOR THE NORTH OF ENGLAND. 



EDITED BV 



T. SHEPPARD, F.G.S., and T. W. WOODHEAD. F.L.S., 



Museum, Hull ; Technical College, Hini'HRSFrELU ; 



WITH THE ASSISl ANCli AS kl FF.RKF.S IN' SPF.CIAI. DEPARTMFNl S C^F 



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

 PERCY F. KENDALL, F.G.S., 

 T. H. NELSON, M.B.O.U., 



GEO. T. PORRITT, F.L.S., F.E.S. 

 JOHN \V. TAYLOR, F.L.S., 

 WILLIAM WEST, F.L.S. 



Contents: — 



Notes and Comments (Illustrated):— An Early Scandinavian Relic. Mammoths Tusk 

 at Croug-h, Prehistoric Bone Disease, Teeth of Early Man, Manx Geology 



Yorkshire Naturalists at Cowthorpe— 7". S' 



Notes on some Prehistoric Jet Ornaments from East Yorkshire (Illustrated) — 

 ./. /?. AfoHi/iii-r 



Some Points in the Biology of Hepaticae (Ulustrated)— F. Caier.s. H.s, . 



New British Water Mites (Illustrated)— C. F. George, M.R.C.S. 



Hull's Contribution to Science (Plate ll\.)— Thomas Sheppard. F.(,.s. 



Reviews and Book Notices (Illustrated) 



Field Notes ... 200, 



Northern News 



Illustrations i()j, 194. igj, 202, 20J. 20s, 209, 210. 211. 212. 2ij. 214, 21^, 216, 



Plates 11!., IV., and V. 



196-200 



2(^1-207 

 208-2IS 

 215-216 

 217-220 

 221-223 

 Zl6, 223 



224 



221, 222 



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