288 



NOTE COLEOPTERA. 



BOOK NOTICE. 



Outlines of the Geology of Northumberland and Durham. By 



G. A. Labour, M.A., F.G.S. Newcastle-upon-Tyne, 1886; 156 

 pp. and V plates. 

 The present work is a new edition of the ' Outlines of the Geology 

 of Northumberland,' enlarged in scope to include also the county of 

 Durham, and with much new matter and numerous illustrations. 

 It cannot fail to be of great service to the local geologist. 



The geological formations are treated in order from above down- 

 ward. The recent and sub-recent deposits are well given, though 

 the Boulder Clays are rather summarily despatched. The Trias and 

 Permian rocks are treated together, the arrangement of the strata 

 above the Magnesian Limestone being necessarily conjectural owing 

 to the want of exposures and the absence of fossils. These strata 

 have a commercial interest due to the Salt Measures, which are 

 discussed here, as are also the ' breccia-gashes ' in the Magnesian 

 Limestone, already described elsewhere by the author. The Carbo- 

 niferous system is, of course, handled at length, four chapters being 

 devoted to the description of the Coal Measures, the Canister and 

 Millstone Grit series, the Bernician rocks, and the Tuedian series 

 respectively. These last two names are the heads of the author's 

 divisions of the Lower Carboniferous. Mr. Hugh Miller's classifica- 

 tion of these rocks, adopted by the Geological Survey, is given in an 

 appendix. The small inliers of Silurian beds in Northumberland and 

 Teesdale are enumerated in Chapter X. The next three chapters 

 are devoted to the Igneous rocks of the district. The most important 

 of these are the numerous dykes, which are here ranged in two sets 

 according to their strike, E.-W. and N.E.-S.W. ; the Whin Sill; and 

 the augite-granites, quartz-felsites, and pyroxene-andesites of the 

 Cheviots : the recent researches of Mr. Teall on these rocks are 

 duly noticed. Next, extensive lists of Carboniferous fossils are given 

 as materials for a palaeontology of Northumberland. A chapter on 

 faults and veins follows ; then a short summary ; and finally a brief 

 description of the adjacent district of Yorkshire which contains the 

 Cleveland ironstone. 



The plates, which are well executed,, include geological maps of 

 Northumberland and Durham, and part of Cleveland. — A.H. 



NO TE— COLE OPTERA. 



Beetles at Sherwood Forest.— At the July meeting of the Entomo- 

 logical Society of London, Mr. A. C. Horner exhibited a Rhizopkagtis from Sher- 

 wood Forest, which appeared to belong to a new species ; and several specimens 

 of Holopedina polypori Forst., also from Sherwood Forest, where he had found it in 

 company with, and probably parasitic on, Cis vestitiis. — W. W. Fowler, Hon. Sec. 



3 bEP ^^~( Naturalist, 



