272 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Feb. 22, 



Littorinella-limestone. In another quarry these marls are 20 or 30 

 feet thick, very near the surface, overlying the Littorinella-limestone, 

 fi'om vrhich it is separated by a vi^hite calcareous band. 



VI. Leaf-hearing Sandstone. (No. 7 of the German list, page 260.) 



Of the next formation in ascending order, as they are laid down by 

 the German geologists, viz. Sandstone with impressions of leaves, 

 I am unable to give any satisfactory account. It occurs in the 

 neighbourhood of Wiesbaden, overlying the upper marls and clays, 

 and overlapping the slaty metamorphic rocks of the Taunus. 



VII. Ossiferous Sand. (No. 8 of the German Ust, page 260.) 



This bed appears to indicate a different state of things from that 

 belonging to the preceding beds, which it overlies unconformably, 

 although belonging to the same general epoch, inasmuch as many of 

 the fossil remains are the same as those found in the underlying 

 beds. It is deposited in hollows in the pre-existing Littorinella-lime- 

 stone, and is decidedly of a freshwater character. Some of the 

 insulated patches are remarkable for the great number of Mammalian 

 bones found in them : most of these are deposited in the museum 

 at Mayence. One of the chief localities for these remains are 

 the sand-pits near Eppelsheim, into which the animals or their 

 bones would appear to have been washed from the surrounding dry 

 ground, on which they must have lived and roamed after the drainage 

 of the great lacustrine basin. The following section in descending 

 order will show the superposition of the beds. It is taken from the 

 top of the hni, distant about a mile N.W. from the village of 

 Eppelsheim : — 



1. Soil; 2 or 3 feet thick. 



2. Loess ; yellowish sandy loam ; 4 feet. 



3. Yellow gravel, with limestone boulders, and a few fragments of 



small bones. 



4. Yellow clay, varying in thickness from 4 to 12 inches. 



5 . Loose sand and small gravel, containing boulders of hsematitic 



ironstone ; 3-4 feet. 



6. Fine loose sand ; about 14 feet exposed, but the bottom not 



visible ; said by the workmen to rest on hard rock. 



The Mammalian remains and teeth were said to have been found 

 in No. 5, but little has been found of late. These sands, &c. are 

 perfectly horizontal, but the Littorinella-limestone in the neighbour- 

 hood has been very much disturbed. 



The Rhinoceros jaw which I obtained from one of the sand- 

 diggers, was said to have come from bed No. o. 



Descending into the valley, near Bischheimer Hof, three or four 

 miles distant to the S.E., I found the same formation of sands and 

 clays filling up the hollow, and containing a specimen of Mijtdus 

 Faujasii, too soft and crumbling, however, to be extracted. 



