1867.] JUDD— LINCOLNSHIRE WOLDS. 239- 



a large Terebratula. At a depth of about 30 feet under the above- 

 described red bed in this pit, a second coloured stratum was reached ; 

 but strong springs of water arising at this point, the attempt to go 

 down further was abandoned. From the pieces taken out at this 

 place, it appeared to be of a mottled pink and white colour (like 

 Castile soap), but I could detect no fossils in it. There were no 

 signs of the sponge-bed ; and I have but little doubt that this lower 

 red bed is only a local one lying in the midst of the white chalk. 



In the very deep cuttings and chalk -pits on the London-road, we 

 have a number of extensive sections aiforded us. The succession of 

 beds in these is as follows. (See diagram, fig. 3.) 



1. Soil. 



2. Eubblychalt. 



3. Chalk with a few flints (very large sandpipes occur in it). 

 * 4. White chalk without flints, upwards of 20 feet. 



5. Variegated band of Fuller's earth 12 to 15 in. 



6. First " white course " 2 feet. 



(A bed of very hard chalk, white above and tinted 

 pink below.) 



7. Second " white course " 2 feet. 



(Similar to the bed above.)' 



8. Eed chalk 5 to 6 feet. 



(Soft pink and red chalk with clay bands of the 

 same colour.) 



9. " Soft white courses " 8 to 10 feet. 



10. Hard " grey stone " 10 feet. 



11. Hard white " Brackly Chalk " to bottom. 



5. is a water-bearing bed ; it is striped horizontally of various 

 colours, green, pink, and purplish red, and is seen at the same level 

 in aU the pits at this part of the town. In its lower portion it 

 becomes nodular, and graduates into the chalk. At the pit near the 

 Union, it is only seen in one corner, and rapidly thins out. 



8. presents the usual characters. Terehratulce and Echini occur 

 in it ; a very large Micraster among the latter. 



9. contains several veins of pink clay, each about one inch thick. 

 One of the pits in this neighbourhood was once dug to a much 



greater depth than at present ; and the workmen state that at some- 

 thing over 30 feet below the red bed (8) another bed of a dark red 

 colour, 5 to 6 feet thick, was met with. In this springs of water 

 arose ; and it would doubtless be the same bed as is seen in the 

 bottom of the pit by the Union. This bed is stated by the workmen 

 to have been underlain by 6 or 7 feet of white chalk, and that again 

 by another dark-red nodular bed, also from 5 to 6 feet thick, under 

 which the chalk was again white. 



There are other places in the neighbourhood at which the Louth 

 Eed Chalk occurs, but they present no fresh features of interest ; the 

 most northern point to which I have yet succeeded in tracing it is 

 a chalk-pit near South EMngton. 



c. Fossils of the Louth Red ChalJc. — The following is a complete 

 list of the fossils that I have found in this bed. Some of the shells 

 are perforated. 



