310 PECCEEDIIsGS or THE GEOLOGICAL SOCIETY. 



tliG beak Las been made up artificially and uncontlily -witli plaster, 

 and painted to simnlate the natural fossil. The last true molar 

 is present on either side, much worn, the anterior portion having 

 been ground away. There are ten disks of wear, presenting the 

 usual character of the species, the enamel plates very thick and un- 

 crimped. The tips of the posterior ridges form well-separated rings, 

 and the digitations are seen to be massive. The diastemal ridges 

 incline with an easy slope ; the outer surface of the jaw bulges out 

 a good deal ; the height of the ramus in front, as in the Irstead spe- 

 cimen, does not much exceed the height behind imder the coronoid 

 process. This valuable specimen was discovered in the cliff, near 

 Mundesley, in 1852, and presented by E. Barclay, Esq., to the ]S"or- 

 wich Museum. It is not stated out of what stratum it came, i. e, 

 whether from the "Elephant-bed," properly so called, or from the 

 " Laminated Blue Clay" above it. It is much to be desired that 

 figures of these two instructive specimens should be published. Some 

 of the dimensions of the Norwich jaw are as follows : — 



inclies. 



Length of crown of left molar (last) 8*1 



"Width of crown at second remaining ridge .... 3*0 



„ „ sixth remaining ridge 2*9 



Length of crown occupied by six ridges, being an 

 average of 0*77 inch to each 4*6 



d. Bones of the TrunJc and Extremities. — My remarks upon the 

 other bones of the skeleton will be very limited, for several reasons. 

 In the lacustrine and clay deposits of the Norfolk coast, and upon the 

 " Oyster-bed" of Happisbiu-gh and Mimdesley, the bones and teeth 

 of at least two of the fossil Elephants, namely, E. {Loxoclon) meri- 

 dionalis an.d E. (EuelejjJias) antiquus, occur intermixed in vast abun- 

 dance. In consequence of the prevalent belief that they were all of 

 one species, namely, the Mammoth, little attention has been paid to 

 the discrimination of the precise beds and divisions of the section 

 out of which they come, and whether from above or below the "Boul- 

 der-clay." In no instance have the bones of an entire skeleton been 

 found together, and there are no well-determined standard examples 

 for comparison. The identification of the species to which the bones 

 belonged can therefore at present be little more than approximative. 

 It will suffice to mention the principal pieces that have come under 

 my observation from localities in which E. mericlionalis prevails. 



In Mr. Gunn's collection at Irstead there is an entire left " os 

 innominatum" of enormous dimensions. 



In the Elorentine Museum there is an enormous scapula, which 

 has been figured by ISTesti {op. cit. fig. 6), in the finest state of pre- 

 servation ; it yielded the following dimensions : — 



ft. in. 

 Entire length from the coracoid process to the pos- 

 terior angle, measured along the spine ...... 4 



Transverse diameter across the spine 3 



Greatest diameter of articulating surface 11 



