264 Bibliography: Geology and Paleontology, 1912. 
A. R. DWERRYHOUSE. Yorks, S.E., Northumberland, Durham. 
Erratic Blocks of the British Isles: Report of the Committee [includes 
reports by R. M. Robson, U. (V. ?) Milthers, T. Sheppard, S. R. 
Haselhurst, E. Merrick, (D.) Woolacott, G. T. Mackay, A. Ball, (J. A.) 
Smythe. Rep. Brit. Assn. (Portsmouth) for 1911, [publ. r912) pp., 
IOI-104. 
A. R. DWERRYHOUSE. Northumberland, Durham, Yorks.. 
Erratic Blocks of the British Isles—Report of the Committee [includes 
records by G. Weyman, F. Walker, (D.) Woolacott, (J. A.) Smyth and! 
J. W. Stather]. ‘ Brit. Assn. Leaflet” (Dundee meeting), pp. 1-3. 
By GOIBCKEL. Northern Counties. 
Building Stones: their Origin, Characters, and Examination. Pp. xv. 
+ 264. London, Ig9i2. 
WILLIAM E. Forp. Northern Counties. 
Dana’s Manual of Mineralogy. Thirteenth Edition. London, 1912, pp. 
vi+ 460. 
F. C. Garretr and R. C. Burton. Durham, etc. 
The Use of X Rays in the Examination of Coal. [Figures Durham examples] 
Trans. North of England Inst. Mining and Mech. Engineers, Vol. 
LXII., part 6. July, 1912. pp. 137-147. 
W. GiBson, see G. W. LAMPLUGH.. 
J. W. GREGORY. Northern Counties. 
The Making of the Earth. London. pp. viil.4 250. 
J. H. Grunpy. Lancs.. 
The Geology of Ashton-under-Lyne. ‘Lancs. Nat.’, August, 1912, 
Pp. 172-177 (plate). 
HAMILTON, BARRETT. See BARRETT-HAMILTON. 
ALFRED HARKER. Lake District. 
Lamprophyre Dykes in Long Sleddale, Westmorland. ‘The Nat.’, Sept., 
1912, pp. 266-267. 
ALFRED HARKER. Northern Counties. 
Some Aspects of Modern Petrology [Presidential address to Section C.} 
“Rep. Brit. Assn.’, (Portsmouth) for 1911, [published 1912], pp. 
370-381. 
ALFRED HARKER. Lake District. 
Appendix [to Prof. Kendall’s paper! on the Igneous Rocks {of the Vale of 
Eden,» ihe sNat< April Lome. pps mie —wlo. 
ALFRED HARKER. See P. F. KENDALL. 
S. R. HasELHuRST. See A. R. DWERRYHOUSE. 
SEL. RAT er. Northern Counties: 
Mineralogy. Fourth Edition [includes particulars of several northern 
county specimens]. 1912, pp. x. + 253. 
Epwin HAWKESWORTH. Yorks., Westmorland. 
Geology {of Tebay District]. “The Naturalist,’ Sept., 1912. pp. 275-6. 
Naturalist 
