258 



PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Feb. 22, 



Spurs of this red sandstone must have extended from the Donners- 

 berg eastward into the ancient sea, from the wearing away and dis- 

 integration of which rocks the marine sands appear to have been prin- 



Fig. 2. — Section of the " Marine Sands " near Flonheim. 



Sand-pit in 

 the Marine 

 Sand»,about 

 40feecdeep. 



A. Red Sandstone, quarried nJ^^^HH^s^ , 

 here for millstones, &c. ^^ ^='^^=" 



J'. Soil. 



d. Fine sand. 



c. Sand with bones (bone-bed). 



b. Loose sand, with Ostrea. Pecteii, and Shark's teeth. . 



a. Gravel :;nd quartz-conglomerate. J 



.1b. 



1 . Marine Sands. 



Fig. 3. — Section of the " Marine Sands," near Vffhofen, 



Skeleton of the Halianassa 

 found here in the Sand-pit. 



A. Red Sandstone. 

 References as in Fig. 2. 



B.l. Marine 

 Sands and 

 4 ( Quartz-con- 

 glomerate. 



Fig. 4. — Section of the "Marine Sands" and "Cyrena Clay" 

 resting on the Red Sandstone, at Weinheim. 



C. Soil. 

 B. 2. Clay. 



i \ Sands. 



a. Gravel, with Ov.'^ters, 

 Shark's teeth,"&c 



. f Carboniferous sandstone 

 t and shales. 



