372 SHEPPARD : BIBLIOGRAPHY OF YORKSHIRE GEOLOGY. 
BucKMAX, S. S. — Yorksliire Type Aiiinionites [describing and figuring ; 
Arietites impendens ; Lotcfceviceras lon icevum ; Pseudocadoceras 
horeale ; Gagaticems funiculatum ; Beaniceras costatum ; Fimbri- 
lytocems jinihriatiun]. Pirt xviii., S Plates; Descriptions Nos. 
120 and 121, Appendix and Index. 
Type Ammonites, Part xix., Pts. 5, 6 ; 9 Plates and a Portrait. 
See Tke Naturalist, October, p. 315. 
Type Ammonites [includes Goliathiceras ammonoides from Mai- 
ton ; Ainauroceras ferruglneiun from " near Whitby " • Rursi- 
ceras reversum, from Scarborough]. Part xx,, pp. 7-8, 14 Plates. 
Campbell, A. — See E. H. Cunningham-Craig. 
Cantrell, T. C, Sherlock, R. L., and Dewey, Hexry. Special 
Reports on the Mineral Resources of Great Britain. Vol. IX., 
Iron Ores (continued) ; Sundry Unbedded Ores of Durham, East 
Cumberland, North Wales, Derbyshire, the Isle of Man, Bristol 
District and Somerset, Devon, and Cornwall. Mem. Geol. Survey, 
pp. iv. +87. Review in Nature, January 1st, 1920, pp. 429-431. 
Cole, G. A. J. — Aids in Practical Geology, 7th edition, 447 pp. 
Cunningham, Brysson. — Sea Aggression [review of Coast Erosion 
and Protection," by E. R. Matthews ; see under 1918]. Nature, 
February 27th, pp. .505-6. 
Cunningham-Craig, E. H. ; Ormandy, W. R. ; Perkin, F. M. ; 
Campbell, A. ; Dunstan, A. E. ; Seabrook, A. H. — A Treatise 
on British Mineral Oil, xi. + 233 pp. 
Dewey, Henry.— See T. C. Cantrell. 
Dunstan, A. E. — See E. H. Cunningham-Craig. 
Evans, J. W. — Address to the Geological Section [of the British 
Association]. Abstract in Nature, October 2nd. pp. 102-107 ; 
Naturalist, November, pp. 350-352 ; Geol. Mag., November, pp. 
509-517, December, pp. 551-563. 
GiLLiGAN, Albert..— The Petrography of a Sedimentary Rock, with 
special reference to the Carboniferous System. Trans. Inst. 
Min. Eng., Vol. LVIL, Part 1, pp. 1-13. Abstract in Quarry, 
March, pp. 67-9. 
The Petrography of the Millstone Grit Series of Yorkshire. Ab- 
stracts Proc. Geol. Soc., No. 1040., May 31st, pp. 88-92 ; Abs. in 
Nature, June 12th, p. 297 ; The Naturalist, August, p. 253, and 
Geol. Mag., August, pp. 331-334. 
