The Post-Tertiary Deposits of Elie and Largo Bay. 109 



remains, and separated by finer deposits of sand, shelly debris, 

 and shells. The fine state of preservation of all the shells, 

 even the smallest and most fragile, for instance, Tellina fabida 

 with the valves in apposition ; the similar occurrence of 

 Bolen siliqua, Mytilus edulis, Ostrea, Tapes 'pullastra, and 

 Cardium ediUe, the two latter even with the ligament pre- 

 served. What is more particularly interesting in the case of 

 T. pullastra is the occurrence of individuals (fine large speci- 

 mens), as in the case of Scrohictdaria in the previous section, in 

 their natural position, with the siphonal end of the shell 

 uppermost, wedged amongst the stones and surrounded with 

 shelly dehris. Lastly, many of the stones have still attached 

 to them specimens of Ostrea and Balanus. 



The following is a list of the MoUusca obtained by Mr 

 Bennie and myself from the raised beach-beds proper. 



This portion of the Cocklemill Burn section is continually 

 spoken of by Mr Brown as the " so-called raised beach ;" * and 

 again, " the materials, consisting of shingle, sand, and shells, 

 have been thrown up by the sea, and apparently at different 

 times, and in a confused way." -[- He appears to be in doubt 

 whetlier to regard this as a raised beach, or to account for it 



* Trans. R. Soc, Edinh., loc. cit., p. 621. 

 t Loc. cit. 



