68 MR. C. T. TRECHMANN ON 



Most of the flints had been carried off the ground, but after 

 some time I collected about twenty specimens, including two 

 small arrowheads, two scapers, one of them calcined, four 

 trimmed flakes, and about ten flakes or chippings. The two 

 arrowheads deserve attention ; the rest of the find comes 

 under the general category of implements described in Mr. 

 Howchin's paper. 



The first specimen (Plate III., fig. 8) is a small barbed 

 specimen (one barb missing) of brown translucent flint, quite 

 unweathered and unbleached, and very sharp and fresh. 



The second specimen (Plate III., fig. 7) is a small almost 

 lozenge-shaped example measuring |- inches in length and 

 breadth, and showing two periods of workmanship. The 

 history of this specimen is somewhat interesting; it was 

 originally a flake chipped from a nodule of transparent honey- 

 coloured flint which had been flaked and left lying till the 

 surface had become thoroughly bleached to a smooth 

 porcellanous whiteness. At some long-subsequent period 

 (possibly some centuries later) the second Neolithic man found 

 it and fashioned it into an arrowhead, exposing once again 

 the light yellow flint which has remained unweathered till the 

 present day. The two periods of chipping are shown both on 

 the upper and under surfaces ; the under surface shows the 

 convexity due to the bulb of percussion of the original flake. 

 The phenomenon of double workmanship has been noticed 

 both on Paleolithic and Neolithic implements, and is evidence 

 of the great length of time which separates different stages of 

 even the Neolithic period. This specimen suggests to me that 

 the great quantity of newer stone age implements which are 

 scattered over our fells is due rather to the length of time 

 during which the district was occupied by flint-chipping tribes 

 than to any density of population. 



Neolithic Site at Blackton in Teesdale. 



Extended search resulted in the discovery of several other 

 localities for neolithic implements on the Durham and 

 Northumberland fells. The most prolific locality is one 



