DR KOCK AGAIN. 381 



blocks through which to create a draught to nurse a flame, 

 precisely as in this day we use either blocks of wood or 

 stones. The stones or pieces of rock found among the 

 bones might have been brought there for the same pur 

 pose. The heads of arrows, spears, and axes are things 

 of such common occurrence that they only afford matter 

 for favourable suspicion, or even but a straw to catch at 

 towards the view taken by Dr Kock. 



Dr Kock continues : " It was about one year after the 

 excavation previously alluded to, that he found in Ben- 

 ton county, Missouri, in the bottom of the < Pomme de 

 Terre river,' about ten miles above its junction with the 

 c Osage, 7 several stone arrow-heads mingled with the 

 bones of the same nearly entire skeleton (the mastodon), 

 mentioned above as the ( Missouriam.' The two arrow 

 heads found with these bones were in such a position as to 

 furnish evidence still more conclusive, perhaps, than in 

 the other case, of their being of equal, if not older, date 

 than the bones themselves ; for besides that they were 

 found in a layer of vegetable mould which was covered 

 by twenty feet in thickness of alternate layers of sand, 

 clay, and gravel, one of the arrow-heads lay underneath 

 the thigh-bone of the skeleton, the: bone actually resting 

 in contact upon it, so that it could not have been brought 

 thither after the deposit of the bone," a fact which he 

 was careful thoroughly to investigate. ".This layer of 

 vegetable mould was some five or six feet thick/ and the 

 arrow-heads and bones were found, not upon its surface, 

 but deeply buried in it, together with fragments of 

 wood, and roots and logs and cones of cypress, but no 

 pebbles were observed in it. Above this layer of mould 

 there were six distinct undisturbed layers of clay, sand, 

 and gravel, viz. three of greyish clay and three of 



