140 Bibliography : Geology of the North of England. 
Sibly, T. Franklin. Northern Counties. 
Report of the Geological Survey Board for 1931. Sum. Progr. 
Geol. Surv., 1931, Pt. I, pp. 1-4. 
Simpkin, N. Lancashire, Cheshire. 
Corrosion by Underground Waters. Coll. Guard., March 18th, 
PP- 538 - 54 0 - 
Sinclair, J. Yorkshire. 
Thorne Colliery, tom. cit., May 20th, pp. 957-960 ; and May 27th, 
pp. 1005-1010. 
— Yorkshire. 
The New Monckton Collieries, Ltd. tom. cit., August 12th, pp. 
281-284. 
— Yorkshire. 
The Collieries of Messrs. Pope and Pearson, Ltd., at Normanton. 
tom. cit., October 21st, pp. 747-750 ; October 28th, pp. 793-796. 
Sinnett, F. S. Yorkshire. 
The Yorkshire, Nottinghamshire and Derbyshire Coal Field, 
South Yorkshire Area. The Silkstone Seam. H.M.S.O., 
Dept, of Sci. and Indus. Research, pp. 25-50 (1/6). See Coll. Guard., 
November nth, pp. 898-900, and Nature, January 14th, 1933, 
p. 64. 
Durham. 
The Brockwell Seam of the Durham Area [Dept, of Sci. Research] . 
H.M.S.O., 76 pp (2/-). See also Coll. Guard., September 2nd, 
pp. 430-431. 
— Northumberland, Durham. 
The Northumberland and Durham Coalfield, Northumberland 
Area. The Main Seam. H.M.S.O., 60 pp. (1/6). See Nature, 
August 20th, p. 281. 
Size, Nicholas. Lake District. 
Shelaga of Eskdale or The Stone of Shame. London : xiv+82 pp. 
Slater, L. Lancashire, Yorkshire. 
Microscopical Study of Coal Seams and their Correlation. Coll. 
Guard., April 29th, pp. 822-825. See also Mid. Inst. Min. Eng. 
— and Eddy, Gladys E. Yorkshire. 
The Significance of Spores in the Correlation of Coal Seams. 
Phys. and Chem. Surv. of Nat. Coal Resources , No. 23. H.M.S.O., 
25 pp., 2/-. See also Coll. Guard., August 19th, pp. 335-336 ; 
Nature, October 1st, p. 512. 
Smith, A. Lincolnshire. 
The Face of Lincolnshire. The Lines. Mag., September-October, 
pp. 29-31. 
Smith, B. Lake District. 
The Glacier -Lakes of Eskdale, Miterdale, and Wasdale, Cumber- 
land ; and the Retreat of the Ice during the Main Glaciation. 
Quart. Journ. Geol. Soc., No. 349, pp. 57-83. Also in Rev. de Geol., 
pp. 588-589. 
— Lake District. 
The Building of the Lake District. See The Lake Counties by W. G. 
Collingwood, 1932, pp. 228-241. 
Smith, Stanley. Cumberland. 
Labechia carbonaria sp. nov., A Lower Carboniferous Stromat- 
oporoid from West Cumberland. Summ. Progr. Geol. Surv., 
1931. Part II, pp. 23-33. 
The Naturalist 
