NATURAL SCIENCES OF PHILADELPHIA. 



345 



tent of country, of timber and vegetable soil may be accounted for, by the 

 draining and disappearance of vast bodies of fresh water ; whatever cataclysm 

 buried this member of the human family, be he Aztec, Indian, Esquimaux or 

 Mound builder, he is for the region above mentioued, " homo diluvii testis." 

 We confess that our preconceived notions of the antiquity of this globe have 

 received a severe shock by this discovery, and have modified our views of the 

 relative antiquity of the strata of this globe and the age of this part of the con- 

 tinent ; with a wish that some more able pen will help to elucidate this strange 

 point, we present these few fads. 



A list of minerals found in the Rocky Mountain Mining Region, between Long. 105 



and 10G. ' Lat. 40 and 39 N. 



December Aili. 

 The President, Da. Hays, in the Chair. 



Thirty seven members present. 



Dr. Leidy made some remarks upon a collection of fossil bones, re- 

 cently brought from the Mauvaises Torres of White Ptiver, Nebraska, 

 by Prof. Hayden. Among the fossils he exhibited the fragments of a 

 jaw, upon which he characterized a new sabre-toothed tiger, under the 

 name of Drepnnodon or Machairodus occidentalis, a species larger than 

 its cotemporary the D. prioiasvus. 



December \\th. 

 The President, Dr. Hays, in the Chair. 



Fifty three members present. 



The following were presented for publication: " List of Coleoptera 

 collected in Lycoming Co." " List of Coleoptera collected near Fort 

 "Whipple." " Revision of the Das^titii," and " Additions to the Cole- 

 opterous Fauna of the United States, No. 1." By John L. LeConte, 



M. D. 



" Descriptions of some new Cicindelidse from the Pacific Coast," and 

 " Descriptions of new Coleoptera of Central America." By Geo. H. 

 Horn, M. D. 



" On a new genus of Homoptera." By Henry Shiner. 



The elections postponed from the last meeting for business were held 

 with the following result : 



Albert R. Leeds, A R. Calhoun, Joseph C. Turnpenny, John Ford, 

 Edwin J. Houston and W. S. Grant, were elected members. 



1866.] 



