76 FIELD NOTES. 



GEOLOGY. 

 Remains of Elephas in East Yorkshire. — The photo- 

 graph reproduced herewith shows three teeth and a portion 

 of a tusk of a mammoth [Elephas primigenius). The two 

 smaller teeth and the tusk have recently been purchased for 

 the Hull Museum collection, and have been found in the vicin- 

 ity of Barmston, by Mr. Allison. The tusk is a fine example, 

 in good preservation, and measures 2 ft. 8 ins. in length, 

 and 13 ins. in circumference. The large central tooth is 

 from the Burstwick gravel pit in Holderness, and has been 

 inserted in the photograph in order to illustrate the unusually 

 small size of a Mammoth tooth appearing just above it. 

 This is evidently one of the small teeth occasionally found at 

 the far end of the lower jaw. It is perfectly formed, and has 

 been well used, the grinding surface measuring 2 ins. by i| ins.. 



and it weighs two ozs. The tooth shown at the top left hand 

 corner is broken and has no grinding surface. It measures 

 8 ins. in length by 3 ins, in width, and weighs two lbs. — 

 T. Sheppard. 



Coast Erosion in Holderness. — In The Naturalist for 

 1911, p. 381, measurements were published showing the loss 

 of land at four points at Aldbrough. East Yorkshire, 'during 

 a period of eighteen years. The distances of these points 

 from the edge of the cliff were again measured in September, 

 1920, with the following result : — 



