ACADEMY OF NATURAL SCIENCES. 171 



Regular Meeting, Oct. 17th, 1864. 

 President in the Chair. 



Seven members present. 



Donations to the Cabinet ; A fossil tooth of Elephant, and 

 several fossil teeth of Horse, from Wellington's Station, on 

 the road from Carson Valley to Aurora, by Mr. Clayton. 

 Specimens of silver ore from the Osceola Lode, Montgomery 

 District, 60 miles S. E. of Aurora, and specimens of silver 

 ore from Bear Mountain, Calaveras County, by Mr. Clayton. 



Donations to the Library : Fragmenta Phytographise Aus- 

 tralis, Vols. 1, 2, 3, and part of Vol. 4. Transactions of the 

 Philosophical Society of Victoria, Vols 1 to 5. The plants 

 indigenous to the Colony of Victoria, Vol. 1. All donated 

 by Dr. Ferdinand Mueller, Director of the Botanical Garden 

 at Melbourne. 



Mr. Clayton made the following remarks in regard to his 

 donations above mentioned : 



The teeth were found near Walkers River, about one mile 

 below the residence of Mr. Gr. E. Wellington, on the Carson 

 River and Aurora Road. This river cuts through a high 

 range of hills immediately west of Wellington's, and enters 

 a large basin or valley, which is some thirty miles long, from 

 north to south, by twenty miles wide, from west to east. 

 After passing through this valley to the eastward, the river 

 enters another canon of considerable extent, and then empties 

 into Walkers Lake, in the southwest portion of the great 

 basin. 



The banks of the river are formed of gravel, sand, and 

 clay cement, containing soda and calcareous matter, which 

 forms a white crust on the surface of the stones and pebbles. 

 The cement bluffs along the river, are from 6 or 8 to 20 feet 

 high, and are cut out by changes in the channel during high 

 water. 



In one of these recent cuttings, the large tooth was found* 



