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Capt. Macdakin — Northampton Ironstone Beds. 



Fig, 3. — Diagram, showing the slipping back and faulting of the beds over the 

 Lias clay in the Greetwell cutting. 



. Explanation of Map. — 1. Norman ton, 2. Caythorpe. 3. Leadenham. 

 4. Navenby. 5. Coleby Mines. 6. Waddington Mines. 7. Canwick. 8. Burton. 

 9. Searle Boring for coal. 10. Greetwell cutting. 



S. Ry. = Sheffield Railway. G. Ry. = Grimsby Railway. G, N. Ry. = Great 

 Northern Railway. The escarpment is shown by a shaded line. 



Fig. 5,— Section at Waddington. 

 Railway, Ironstone Mine. Undulating Country. 



^^ Lias Clay. 



