lation to a geological formation of fully determined ago* This 
is the only question to he asked and answered, and it my he said 
3a 
that the answers which forty years ago wore practically all in the 
affirmative are today v- ../, in lie negative* 
It is essential in considering the discovery of any nork 
of ha:.an hands thought to he associated with formations of a par* 
ticular geological period, that three quest!a* s he asked and an¬ 
swered? 1st , is the specimen a work of art) 2nd , Is the age of 
the formation involved determined beyond the possibility of doubti 
3rd , is the specimen without question an original inclusion in the 
particular tor -ation: Those Questions have ass a rule been, readily 
answered by the fimers, who have had very imperfect iiMerstanding 
of the require -onto, of scientific research. There mj have been 
-- a 
no difficulty in deciding that the object found la work of 
art, bat the finder his boon without definite knowledge regarding 
the ago of the containing formation and has had little idea of 
the dangers of disturbance^of the deposits of ail ages during the 
&mm: period, long or shorty that has passed since their deposition* 
