( 2J8 ) 



are mostly found at a depth of 4 M. in the clay; at 1.25 M. below its 

 upper surface it there encloses a layer of sand, 0.30 M. thick. The outside 

 of the bones is always absolutely uningured, they do not look rolled 

 worn at all. The following enumeration of fossil forms will sufllice 

 for the determination of tlie geological horizon. 1 hope to be able 

 to work out and to complete the list on a later occasion. 



As regarding the Molluscs, it is in the tirst place noteworthy, 

 that these for the most part belong to forms proper to fresh water, 

 and especially to stagnant or very slowly running water ; a few land- 

 snails belong to species which may hax e Hved upon the vegetation on 

 the shore. Till now I have recognised : 



I-'ig. 1. — CervHS tegiiUensis, sp. n. Left anller, laloral aspect. (' §). 



The liguied specimen belongs to the collection of Mr. Stuns. Seveial other 



specimen do not possess the strong, curvaluie of the beam at the 



origin of the tres-tine, in such a manner that the beam is 



on the whole straighter. 



Palmlina, '2 sp., l*/ai)orbi.s ^i., He/U- hispklaL., Heli.v arbii.sforiniiL., 



Helix sp., Li)NN((('/is sp., PisicUum, 2 sp.. Unto sp. 



Of the Mammals the following species are well determinable: 

 Troc/onthenum Cuvieii Owen, Cevviis Sedgwickii Falc. (= Cerru.s 



dlcranivs Nesti), Cervus te(juUen4s, sp. n., ('erviis {Axis) rltenanm-, sp. n., 



CerinLs {Axis) sp., Nippopofainuè ainpldhluslj., E(/ni(s Stenoi/is Cocdn, 



Rldnoceros etruscus Falc. 



such as they have been produced elsewhere by the motion of the Pleistocene 

 ice-sheet, but here we have indeed only before us a result of the process of the 

 blue clay to yellow. Elsewhere, as opposite Belfeld, where still the original thick 

 gravel bed covers tlie clay, and consequently Iho underground water is at a higher 

 I evel, has preserved the greyish blue colour up to its upper surface. 



