LineolnshiFe Geology, 



BY 



IF. 1^. BTJI?.T01T, IF-.Xj.S., ZP.O-.S. 



fpHE Geology of Lincolnshire is confined entirely to the 

 -jf- great secondary period, with the exception of a narrow 

 ■^ strip on the North Western border of the county at 

 Gainsborough, where older strata, of Triassic age, are met with. 

 These later deposits soon give place to the Rhoetic series, which 

 form the passage beds of the Lias ; and the latter again are re- 

 placed by the Oohtes, and these further on by the Cretaceous 

 measures reaching to the sea. 



Pleistocene and recent deposits prevail to a great extent on 

 the Eastern side of the county, where large tracts of land are 

 covered up by Glacial drift, silt and peat. 



The Northern half of the county has received considerable 

 attention of late years from geologists, more so than the Southern 

 portion, though the whole has been investigated by the Govern- 

 ment Survey. 



It will be interesting, in this the first volume of the transactions 

 of the Lincolnshire Naturahsts' Union, to give an account of 

 what has already been done in the county by way of geological 

 investigation, and the following list of papers and references is 

 set down in the order of their publication. 



i8ig. — Mr. Bogg. — On the Otdlines of the Geology of the Lincoln- 

 shire Wolds. — This paper, which is published in the transactions 

 of the Geological Society, first series, gives an account of the 

 succession of beds lying to the West of Louth. Mr. Bogg was 

 one of those unfortunates who have, to their cost, so frequently 

 mistaken appearances for facts in Geology ; and, seeing bitumi- 

 nous shales exposed in the valley of the Bain, he spent and lost 

 large sums of money in boring for coal. 



1829. — Professor Jno. Phillips, f.g.s. — Geology of Yorkshire. — 

 In this work allusions are made to the beds at the base of the 



