272 Mr 0. Fisher, On a mammaliferou§ deposit 



yards. 

 From the mammalian deposit to the hedge, level, . . .77 

 From hedge to Northern branch of stream, descent 20 feet ,100 

 From Northern branch of stream to middle branch over 



alluvium, level, . . . . . . . .120 



From middle stream to Southern do, level, . . . .134 



From Southern stream to a point near Foxton Station, 



ascent 20 feet, 220 



651 



Here we are again upon the level of the mammalian deposit, 

 from which we took our departure. It appears therefore that the 

 mammalian deposit belongs to a terrace about twenty feet higher 

 than the present stream; and considering the flat general character 

 of the district, it may be looked upon as a high-level gravel. 



The composition of the deposit is of interest, as bearing evi- 

 dence of its post-glacial age. The gravelly silt in which the bones 

 occurred consisted of such materials as had been derived from 

 the washing of the boulder clay, lower chalk, and greensand; 

 which are the strata out of which the valley has obviously been 

 excavated. There were many large stones, towards the base of it, 

 some of which might weigh from twelve to sixteen pounds. We 

 met with well rounded pebbles of quartz, quartzite, syenite, trap, 

 jasper, and similar hard rocks, while the flints were but little 

 rounded, being chiefly subangular gravel. The whole was imbedded 

 in a grey sandy and clayey matrix with grains of glauconite and 

 "coprolites" and rolled pieces of chalk marl. The pebbles of foreign 

 derivation were so numerous that the material could not be called 

 a flint gravel. 



The bones which occurred throughout the silty gravel were re- 

 markably abundant for a deposit of that nature. They were as 

 numerous as in a cavern. There were many rolled fragments which 

 were neglected; but the specimens which were brought away were 

 for the most part unrolled, though mostly broken. A leg of the 

 Bos primigenius was found with all its parts in association, and 

 must have been united by ligaments when deposited. The species 

 were determined by Mr Tawney, and were as follows : 



1 Urs'us spelceus, 



2 Meles taxus, 



3 Hyoena sp)el<jea, 



4 Felis leo, 



5 Cervus megaceros, 



6 ... elaphus, 



7 ... small species, 



8 Bos primigenius, (abundant) 



9 Bison prisons. 



