DISCOVERY 



317 



deny that similar results could possibly be produced 

 by natural causes. Mr. Reid Moir maintains that he 

 has demonstrated this by a prolonged course of study 

 of natural and artificial fracture and by experiment. 



situated in France and Belgium. Of the four phases 

 or periods of the Tertiary Epoch, the later three, 

 Oligocene, Miocene, and Pliocene, only are in question- 

 A claim has been entered for Eocene specimens, but it 



Kh^'' ^^^ .^^ 



A REPR-ESENTAXn'E COLLECTION OF KENTISH EOLITHS. 



I am greatly indebted to Mr. de Barri Crawshay and to his son, Mr. Rajinond de Barri Crawshay , by whom the photo- 

 graph was taken, for this iUustration. which is particularly valuable and instructive, as it shows all the types of the 

 Kentish eoliths. It has the further interest that some of the specimens, as shown in the table below, were found 

 by Benjamin Harrison himself and are from his collection. Of the other specimens, most have been found by Mr. de 

 Barri Crawshay himself or members of his family. The specimens are arranged in a series ranging from the crudest 

 form up to the Plateau tj-pe of palseoUth of acute form. The index numbers are the numbers of the specimens in Mr. 

 de Barri Crawshay's collection. The scale may be gauged by specimen No. 32, of which the dimensions are 4^ by 2\ in. 



Where two such experts as Mr. Hazzledine \\'arren and 

 Mr. Reid Moir, both of whom have devoted close 

 study to the subject over a long period, are completely 

 opposed, the difficulty is not one of which a solution 

 seems hopeful, at any rate on these lines. 



Eoliths in Europe 



The principal sites on which eoliths ha\e been found 

 are situated in France, Belgium, and Britain. Of 

 these, those for which the earliest date is claimed are 



has hardly been received seriously. The finds at 

 Thenay have already been mentioned. These, which 

 belong to the Oligocene, were at one time supposed to 

 show signs of the action of fire. They have been 

 rejected by one authority who, however, accepts 

 the evidence for finds of Miocene times at Le 

 Puy Courny, near Aurillac, in the Department of 

 Cantal. These flints were found in a deposit of alluvial 

 sand which overlay a marine deposit and was itself 

 under lo metres of volcanic debris. Extensive finds on 



