62 Kansas Academy of Science. 



rings of growth showed that the tree had stood one hundred 

 seventy-five years on this bottom. 



As to the time of burial of the chipped flint (chert) weapons 

 at Council Grove and of the horse bones and teeth at Eureka 

 there is at present no agreement among geologists. The indi- 

 cations are that these relics were buried at about the close of 

 the Glacial epoch. Some geologists fix that time at twelve thou- 

 sand years, others at thirty thousand, some fifty thousand, and 

 still others make the time one hundred thousand years ago. 

 The author of this paper would estimate that they have been 

 buried at least twenty-five thousand years. 



