Fig. 3. — Corrvparative Sections of the Lower Chcdh 4'c. of Yorhshire and 



Lincohishire. 



Cliff-section, Speeton, Section in Louth, 

 Yorkshire (Mr. Wiltshire). Lincolnshire. 



White Chalk 



with Solasfersubglobosus and Am- 

 monites p&ramplus. 



Pale-pint Hard Chalk . 5 ft. 

 with Terebratulina gracilis, Mhyn- 

 clionella Manielliana, Gryphaa 

 vesicidaris, Molaster subglohosus, 

 Discoidea cylindrica, spines of Ci- 

 daris and JDiadema, yertebrs and 

 teeth. 



Greenish-yellow Chalk . 40 ft. 

 with numerous thin layers of 

 Marl. Almost destitute of fossils 

 except fragments oi Inocerami. 



! / 1.. 



Light-pink Chalk . . . 3 ffc. 

 with fragments of Inocerami. 



Grreenish-yellow Chalk . 9fb. 

 with Gryphcea, Terebratula semi- 

 globosa, and Feltastes. 



White and Eed Chalk, in thin 



bands 5 ft. 



Very few fossils. 



Pale Eed Chalk .... 7ft. 

 Vermicularia umbonata niimerous ^ 

 in upper part. ^-ni&M Terebratulas ^K 

 and Iiwcerami in lower part. 



Greenish-white Chalk . 10 ft. " 

 Few fossils, TerebratulcE and bones r 

 of Starfish. 



Eed Chalk (Hunstanton Lime- 

 stone) . . more than 30 ft. 



Very fossiliferous, very large Te- 

 rebratuloB in upper part, Belem- 

 nifes minimus very abundant, Fen- 

 tacrinus and spines of Cidaris, &e. 



Lower beds becoming nodular and 

 of a bluish east, thus graduating 

 into the clav below. 



White Chalk without flints. 



Band of variegated Marl, greenish-, piok- 

 ish-. and purplish-red, 12-1.5 in. 



"First White Course" (Pink below) 2ft.. 

 " Second "Uliite Course" (Pink below) 2ft. 



Pale Pink Chalk .5 to 6 ft. 



with TerehratuUna. gracilis, Terebratula 

 obesa, Solasfer subglobosa, Discoidea cylin- 

 drica, JlJiynchonelhi mantelliana. Spines 

 of Cidaris and other fossils. 



Soft ^Tiite Chalk ..... 8 to 10 ft. 

 with marly bands one inch thick, some of 

 them pink. 



" Hard Grey Stone " 10 ft. 



with Pecten orbicularis, var., Terebratula. 

 biplicata, Spongia paradoxica, &c. 



Hard White Brackly Chalk," 1.5 ft. 



^^AA 



Speeton Clay 



White Chalk, grey below, with Ammo- 

 nites peramplus, Terebratula obesa, T. 

 biplicata, Fhynchonella Cuvieri, Solaster 

 subglobosa, Discoidea cylindrica, teeth of 

 Lamna, &c. 



" Sponge-Bed" with Spoiigia paradoxi<;a, 

 "Yellow and Pink Courses." 



Eed Chalk (Hunstanton Limestone) 12ft. 

 Terebratula biplicata abundant in upper 

 part, Belemnites minimus especially in 

 lower part, numerous other fossils. 



Courses with numerous blaok and brown 

 pebbles, forming passage into sands below. 



Upper Ferruginous Sands, 

 (unfossiliferous) . 



