BIBLIOGRAPHY OF YORKSHIRE GEOLOGY. 
9 Davis, R. H. — Monthly Analytical Examinations of the 
Harrogate Spas, 1872. Journ. Chem. Soc, New Ser., 
vol. xi. ; Entire Ser., vol. xxvi., pp. 1089-1092. 
10 Dawkins, W. Boyd. — Report on the Results obtained by 
the Settle Cave Exploration Committee out of Victoria 
Cave in 1870. Journ. Anthrop. Inst., vol. i., pp. 60-66. 
Nature, vol. vii., pp. 374, 375 ; Proc. Lit. Phil. Soc, 
Manchester, vol. xii., 61-65, 111. 
11 and R. H. TlDDEMAN. Report on the Victoria Cave, 
explored by the Settle Cave Exploration Committee. 
Rep. Brit. Assoc. for 1872, Sections, pp. 178-180. 
12 De Rance, C. E. — On the Occurrence of Lead, Zinc, and 
Iron Ores, in some Rocks of Carboniferous Age in the 
North-west of England. [Lancashire and Yorkshire]. 
Geol. Mag., vol. x., pp. 64-74. 
13 Evans, F. J. — On the present amount of Westerly Mag- 
netic Declination [Variation of the Compass] on the 
Coast of Great Britain and its Annual changes. [Brid- 
lington Quay and Spurn Point]. Phil. Trans, for the 
year 1872, vol. clxii., pp. 319-330. 
14 Fisher, O. — [Letter on] The Settle Cave Deposits. Geol. 
Mag., vol. x., p. 95. 
15 Green, A. H. — Explanation of Horizontal Section, sheet 
69. [See 1868]. 
16 Hughes, T. McK. — On a Series of Fragments of Chert 
collected below, a chert-bearing Limestone in Yorkshire. 
[Ingleborough]. Rep. Brit. Assoc., for 1872, Sections, 
p. 189. 
17 Hull, E. — The Coal Fields of Great Britain. Ed. 3. [See 
I860]. 
18 Jones, J. — Sur la Geologie du District Sideringique du 
Cleveland, considered dans ses traits generales. Rev. 
univ. Mines, t. xxxiv., pp. 69-81 ; translated from 
Proc. Mech. Eng., 1871, pp. 184-199. [See 1871]. 
19 Leckenby, J. — The oldest known British Trigonia. Geol. 
Mag., vol. x., p. 135. 
20 Lucas, J. — On the Origin of Clay-Ironstone. Quart. Journ. 
Geol. Soc, vol. xxix., pp. 363-369 ; Iron, n. ser., vol. i., 
p. 453. 
