294 BIBLIOGRAPHY OF YORKSHIRE GEOLOGY. 
43 Garwood, E. J. — Life Zones in the British Carboniferous 
Rocks. Report of the Committee . . . appointed 
to study the Life Zones in the British Carboniferous Rocks. 
Geol. Mag., dec. iv., vol. iv., pp. 356, 357 ; Rep. Brit. 
Assoc. for 1897, pp. 296, 297. 
44 Geikie, A. — The Ancient Volcanoes of Great Britain. 
[Yorkshire, vol. ii,, pp. 4, 9, etc.]. * Pp. xxiv., 477, xv., 
492, 2 vols. 8vo. London. 
45 — — The Founders of Geology. [Wm. Smith's connection 
with Yorkshire. Pp. x., 297. Ed. 2. Pp. xi., 486. 
1905. 8vo. London. 
46 Explanatory Notes to accompany a new Geological 
Map of England and Wales. Scale one inch to ten miles. 
Pp. 1-28, and map. 8vo. Edinburgh. 
47 Geikie, James. — The Last Great Baltic Glacier [brief 
references to Yorkshire]. Jotirn. of Geology {Chicago). 
Vol. v., No. 4, pp. 325-339. 
48 Goodchild, J. G. — An Outline of the Geological History of 
the Rocks around Edinburgh. [Comparative section of 
the Lower Carboniferous of Yorkshire]. Proc. Geol. 
Assoc., vol. xv., August, pp. 117-143. 
49 Hardcastle, C. D. — In Memoriam. Thomas Tate, F.G.S. 
Naturalist, 1897, pp. 367-370. See 1895. 
50 Harker, Alfred. — Petrology for Students. Ed. 2. Pp. 
viii. + 334. 
51 H[arker], A. — In Memoriam. Alexander Henry Green. 
Naturalist, pp. 111-114. 
52 Harrison, W. J. — A Text-book of Geology intended as 
an introduction to the study of the rocks and their 
contents. [Many references to Yorkshire geology]. New 
Ed. [nominally the 4th but practically a new work]. 
Pp. vii., 343. 8vo. London. 
53 Harrison, W. Jerome. — A Bibliography of Norfolk 
Glaciology, including the Cromer Cliffs. [Nearly 500 
entries]. Glac. Mag., March, pp. 141-185 ; June, pp. 
pp. 1-33 ; Sept., pp. 49-62. 
54 Hartley, W. N., and H. Ramage. — On the Occurrence of 
the Element Gallium in the Clay-Ironstone of the Cleveland 
District of Yorkshire. Determination of Gallium in 
