138 ME. S. S. BUCKMAN ON THE BAJOCIAN [Feb. I90I, 



Division 2 thins ont to about 6 feet at Cleeve Hill, but there is 

 reason to suppose that it thickens rapidly eastward (see fig. 3, 

 p. 142). 



Y. Supplementary Notes. 



(«) The Snowshill Clay. 



The recognition of this clay as a water-retaining bed might be of 

 some economic importance to the district. It has been noticed 

 already as the factor in holding up water for the supply of Seven 

 Wells Farm ; and as furnishing soil suitable for fruit-trees. It 

 would probably be found that the position of several other farms 

 had been determined by this clay, which is certainly a thick deposit. 

 Such position at any rate is the case with a farm known as Small 

 Thorn, and its neighbour, about | mile away, Bourton Hill (not 

 marked on the map). 



I obtained the following information at Small Thorn : — 



' The well is 6 feet deep, and there are springs of water in the fields ; but at 

 Bourton Hill the well is 40 feet deep. At Small Thorn the water has shrunk 

 a bit of late ' [August 1898 — a very dry summer. They attribute the shrinkage 

 to the waterworks at Kitenest, near Broadway, but these are in Lias.] 



■ ' At Small Thorn they always have plenty of water, but in the bottom (that is, 

 on Upper Lias at Horns Leazor) they have none now [in summer]. Yet in the 

 winter the latter is flooded.' 



(b) The Harford Sands. 



These sands form a very noticeable deposit in the North Cottes- 

 wolds, and attention may be called to the fact that they are, in 

 places, very fossiliferous. Thus at Snowshill (Section VI, p. 133) 

 they showed abundance of Nerinoea of various species ; and at 

 Sudeley Hill, on the flank of the escarpment below Farmcott- 

 Wood Quarry, the sandstone - blocks were quite crowded with 

 lamellibranchs. 



(c) A Review of Work accomplished. 



This paper concludes, with the former contributions published in 

 the Society's Quarterly Journal ^ and two communications published 

 in the Proceedings of the Cotteswold Naturalists' Field Club,'^ the 

 description of the Cotteswold strata intervening between the Upper 

 Trigonia-grit and the Upper Freestone. The papers published in 

 the Quarterly Journal may be said to form a monograph upon the 

 subject of these intervening beds and the Bajocian denudation ; but 

 those published by the Cotteswold Field Club, dealing with the strata 

 on the two lines of railway, were not written from this special 

 point of view. They are moreover deficient in details, owing to 



^ ' Mid-Cotteswolds ' Quart. Journ. Geol. Soc. vol. li (1895) pp. 388-462 & 

 ' Cleeve Hill Plateau ' Ibid. vol. Hii (1897) pp. 607-29. 



^ ' The Inferior Oolite between Andoversford & Bourton-on-the- Water ' Proo. 

 Cottesw. Nat. P. C. vol. ix (1887) p. 108 ; ' The Sections exposed between 

 Andoversford & Chedworth ' Ibid. vol. x (1890) p. 94. 



