BIBLIOGRAPHY OF YORKSHIRE GEOLOGY. 
68 Fowler, J. C. — A large Glacial Boulder at Whorlton. [Snap 
Granite, 23 feet in circumference]. Proc. Cleveland 
Nat. Field Club, 1907-8, vol. ii., pt. 3, pp. 174-175. 
69 ■ An interesting Geological Discovery [at Whorlton ; 
stool of oak (?) in position below 6 feet of glacial (?) 
drift clay]. Proc. Cleveland Nat. Field Club, 1907-8,. 
vol. ii., pt. 3, pp. 176-177. 
70 Gilligan, Albert. — Some Effects of the Storm of June 
3rd, 1908, on Barden Fell [with numerous photographs]. 
Proc. Yorks. Geol. Soc, vol. xvi., pt. 3, 1908, pp. 
383-390. 
71 Greenwell, Allan, and J. V. Elsden. — Stone: Quarrying, 
etc. Also the Quarry, June, pp. 199-203 to July, pp. 
235-238. Nov., pp. 379-384. 
72 Gregory, E. E. — Correspondence [replying to H. Brant- 
wood Maufe's criticism in previous issue] . Bradford Sci* 
Journ, April, pp. 254-5. 
73 [See H. Brantwood Maufe]. 
74 Grew, E. S. — The Romance of Modern Geology. [Refers 
to Yorkshire Pot-holes, etc.]. London. Pp. 308. 
75 Hargreaves, J. A. — Land and Freshwater Mollusca in 
the Scarborough District. [Brief Geological notes]. 
Journ. of Conch., July, pp. 299-308. 
76 Harker, Alfred.— The Natural History of Igneous 
Rocks. London. Pp. 384. 
77 Harmer, F. W. — The Pleistocene Period in the Eastern 
Counties of England. [Brief reference to Yorkshire]. 
Geology in the Field, pt. 1, pp. 103-123. 
78 Hastings, Cuthbert. — Gaping Ghyll [with photo]. Brad- 
ford Sci. Journ., No. 22, Oct., pp. 289-294. 
79 Hatch, F. H. — Text-book of Petrology, containing a 
summary of the modern theory of Petrogenesis, a 
description of the rock-forming minerals, and a synopsis 
of the chief types of the igneous rocks and their 
distribution as illustrated by the British Isles. 
Pp. 404. 
80 Hawkes worth, E. — Geology [of Horton-in-Ribblesdale ; 
on Yorkshire Naturalists' Union Circular, No. 2051. 
Trans. York. Nat. Union, pt. 34, for 1908, p. 3. 
