No. 154. 



2 MAY 



MAY 1888. 



MONTHLY JOURNAL OF 



NATURAL HISTORY FOR THE NORTH OF ENGLAND. 



, ^ . > , EDITED BY 



>%iL^M\b}^WM. DENISON ROEBUCK, F.L.S., 



WM. EAGLE CLARKE, F.L.S., M.B.O.U., 



CORBESPONDERENDIR MITGLIEU DES ORNITHOLOGISCHEN VEREINS IN WIEN, 



Contents: 



The Flora of Wensleydale, North-West Yorkshire— Percival, B.A 125 to 143 



A New Shell-Book (Review) 144 



Coal-Dust and Explosions in Coal-Mines — Rev. Arthur Watts, F.G.S., F.R.C.S. 145 to 151 



The Vertebrata of Sutherland (Review) 152 & 153 



The British Example of Bulwer's Petrel .. . 156 



Note--Hepatic3e 143 



Jubula Hutchinsiae in Cumberland— C. H. JVaddell, B.A. 



Note— Lepidoptera 151 



Nepticula Serella at Ingleborough — Ceo. T. Porritt. 



Bibliography— Hymenoptera, 1884, 1885, 1886, 1887 153 to 155 



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