358 PRE-GLACIAL DEPOSITS. 



ANTHROPOLOGICAL EVIDENCE. 



Both in Jersey and in Guernsey have been found in the 

 25 feet beach, implements which can only be assbciated with a 

 pre-Chellean culture, but in the clays have been found some 

 of the Chellean types (see Photo No. 11). The latter 

 we may take it have come (some are pebbles) from the upper 

 beach and sands, nnd one has been found by Dr. Kinnersly 

 in a deposit which I look upon as of marine origin. 



Thus this evidence, as far as it goes, is confirmatory of 

 the advanced theory, that : — 



(a) The beaches are pre-glacial. 



(Z>) The beaches follow each other as to time, in 

 the order of their elevation, and 



(c) They prove a total submergence of the 

 island as an event occurring at the commencement 

 of the Pleistocene Period. 



This will be still further strengthened by the evidence of 

 the intermediate deposits, which I next describe under the 

 title of Passage Beds. 



Stage 1.— Part 3. 

 PRE-GLACIAL DEPOSITS FORMING. PASSAGE BEDS. 



1 have so far dealt with the evidence of a pre-glacial 

 submergence as afforded by the raised beaches. I now proceed 

 to fill certain gaps between the beaches, the deposits of which 

 cannot be depended on for the main facts, but are of value as 

 confirmatory and connecting evidence. 



In this part I shall still confine myself to the deposit of 

 this submergence, leaving other deposits to fit in when I am 

 treating of their causes. 



The term "passage beds" is perhaps hardly the one to use ; 

 but it conveys the meaning I wish to give them, that is the 

 beds or deposits which have been laid down during the beach 

 period and between the beaches and yet appear independent of 

 them. 



Such beds are of small area and are strictly local, 

 depending on the nature of the ground they are deposited upon. 

 Although these deposits are of small extent, often but a few 

 feet in length, they occupy definite positions which, I think, 

 gives them a true geological value. 



I may at the same time add a few facts, not considered 

 necessary in the first part, where I was more concerned in 

 establishing my argument than the filling up of detail. 



