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Fig. 2.-Section from Kingsthorpe, through Northampton and Huntsbury Hill, to Blisworth.
a. Alluvium. b. Boulder-clay. C. Older Postglacial gravel. X. Great Oolite clay, Blisworth. A. Great Oolite limestone. B. Great Oolite Clay, Lias clay. G. Marslstone.