VOL. XVII. (2) INFERIOR OOLITE— CHIPPING NORTON 197 



and the question of their correct allocation, whether to the 

 Great Oolite or to the Inferior Oolite, are matters that have 

 engaged the attention of many geologists. A thick mass of 

 limestone, called the " Chipping-Norton Limestone," is the 

 most prominent rock-subdivision in the district, spreading over 

 a wide extent of country. Attention has been mainly directed 

 to this Limestone, and the desire to settle the question whether 

 it should be grouped with the Inferior Oolite or with the Great 

 Oolite, appears to have outweighed the inclination to study the 

 sub- and super- jacent deposits, with a view to seeing how far 

 they would contribute information towards arriving at a con- 

 clusion with regard to the precise date of the relatively-barren 

 intervening deposit {i.e., the Chipping-Norton Limestone). 



Previous Workers. — Amongst those who have worked 

 on the Oolites of this district are Prof. E. Hull,' A. H. Green,* 

 Prof. J. W. Judd,3John Phillips,'^ W. H. Hudleston,^ T. Beesley^ 

 J. Windoes,7 Mr H. B. Woodward,' and Mr E. A. Walford ;» 

 but of these, Walford, Hudleston and Judd have made the 

 most important contributions to our knowledge. 



Mr H. B. Woodward has summarized very well indeed all 

 the information that had been obtained up to and inclusive of 

 the year 1894, and he inserted some additional observations. 

 Since then, however, Mr E. A. Walford, F.G.S., has published 

 k most valuable contribution, in which he has detailed the 

 sequence of a number of most interesting, fossiliferous deposits, 

 which he calls " Neseran Beds."'° More recently, Mr J. A. 

 Douglas has contributed an article, of the nature of a resume, on 

 the geology of the Oxford-Banbury district to the Jubilee 

 Volume of the Geologists' Association ;" but no new facts 

 are recorded therein, and Mr E. A. Walford's latest contribution 

 is unfortunately overlooked. 



1 " The Geology of the Country around Cheltenham " (1857), pp. 47, 48, 59, 60. Mem. Geol. Surv. 



2 " The Geology of the Country around Banbury " {1864), p. 12. Mem. Geol. Sur\'. 



3 " The Geology of Rutland, etc." (1875), PP- I7-2+- Mem. Geol. Surv. 



4 "The Geology of Oxford, etc. (1871), pp. 144, 164, 243, etc. 



5 Proc. Geol. Assoc, vol. v., No. 7 (1878), pp. 378-379 : " Monogr. Brit. Jur. Gasteropoda — 

 Part 1, Gasteropoda of the Inferior Oolite," pp. 70-71. Pal. Soc. 



6 Proc. Geol. Assoc, vol. v., No. 4 (1877), PP- 165-185. 



7 Mr Windoes was an active local collector. See Foss. Trig. (Pal. Soc.) Lycett, Appendix 

 revised by E. A. Walford. 



8 " The Jurassic Rocks of Britain — The Lower Oolitic Rocks of England (Yorkshire excepted)," 

 vol. iv. (1894), pp. 146-164. Mem. Geol. Sur\'. 



9 Foss Trig., Lycett, as above; Quart. Journ. Geol. Soc, vol. xxxix. (1883), pp. 224-245; 

 ibid., vol. xli. (1885), pp. 53-47 ; Rep. Brit. Assoc. (1895), p. 414 ; Proc. Geol. Assoc, vol. xiv., pt. 5 

 (1895). PP- 184-185. 



10 " On some New Oolitic Strata in North Oxfordshire " (1906), pp. 1-32. Buckingham 

 Advertiser Office. 



11 " Geology in the Field." pt. i (1909), pp. 192-209. 



