228 A LATE GLACIAL STAGE IX THE LEA YALLEY : [June I912, 



has been described by Mr. M. A. C. Hinton under tbe name of 

 Sorecc kennardi (Geol. Mag. dec. 5, vol. viii, 1911, p. 533). 



It ought perhaps to be stated that the bones from the Alluvium 

 and those which are found within the Arctic Bed resemble each 

 other so closely, that some care has to be exercised in separating the 

 one from the other when these have not been found in place by a 

 scientific observer. 



The teeth of elephants and large bones are reported to have 

 also been found in the Angel Eoad j^it. I have only mjself seen 

 molar teeth of the horse, and a portion of an antler which I felt 

 little hesitation in determining on my own responsibility a.s Hanr/ifer 

 tarandus (a determination since confirmed by Mr. E. T. I^ewton). 



So far as present information goes, the comparative scarcity of the 

 reindeer is somewhat surprising. This is especialh* the case in the 

 light of the group of mammalia found in the brickearth of Cheshunt. 

 A series of these remains is in my possession : the}- have not yet 

 been described, but I have received much assistance in their 

 determination from Mr. M. A. C. Hinton. This deposit is situated 

 about 5 miles farther up the valley, and lies a little below the 

 100-foot contour. I believe it to be earlier than the Ponder's End 

 Stage. 



In the Cheshunt brickearth Bangifer tarandus and Bison priscus 

 are peculiarly abundant; while associated with these are Eleplias 

 p)rimi(/enius and BMnoceros antiqiiitatis, Equus cahallus being very 

 rare. The group of mammalia thus difi'ers from that found at 

 Ponder's End. 



In conclusion, it only remains for me to thank the officers of the 

 Great Eastern liailway Company, and Mr. Berriman in charge of 

 the Angel Road works, for their many kindnesses. 



EXPLANATIOX OF PLATES XV & XYI. 



Plate XV, and Key to same. 



Section in the Pickett's Lock Pit. fi=Brickearth ; the apparent thinning-off 

 on the right is due to the fact that the face of the brickearth is cut farther 

 back than that of the gravel and sand, and is thus partly hidden. 6== Arctic 

 Bed, cut off by an obhque stream of sand, c. d=The edge of a large mass of 

 concreted gravel, ceuiented together by ferruginous material. g=A similar 

 block, fallen down and partly hiding the Arctic Bed. //=line of fallen material 

 at the base of the section. 



Plate XVI, and Key to same. 



Section of the Arctic Bed seen in the Angel Road ballast-pit. This shows 

 an unusual amount of the Arctic Bed which was left untouched in the middle 

 of the excavation, a, b, c, d, c=Succe.>.sive masses of the Arctic Bed overlapping 

 each other, and mostly separated by thin layers of gravel and sand, a', b'= 

 Continuation of the same beds seen in the foreground. Between a. b and a', b' 

 there is a cutting made for the light railway used in the works. At the spot 

 marked /, at the bottom of the Arctic Bed, were found the remains of the 

 banded lemming. Dicrostonyx henscli Hinton. 



