n 



%\t <$£alo$xBtB %mtmtxnvt. 



ON 



SOME PECULIAR MARKINGS 



ON THE 



BROKEN SURFACES OF FLINTS. 



BY 



N. T. WETHERELL, Esq., M.R.C.S., 



OF HIGHGATE. 



A PAPER READ AT 



THE ORDINARY MEETING, 



6th JUNE, 1859. 



LONDON : 

 PRINTED FOR THE ASSOCIATION, 



AND 



PUBLISHED AT THE OFFICE OF "THE GEOLOGIST," 154, STRAND. 



1859. 



