No. 112.] 47 



In accordance with tlie preceding view of the subject, our fossil is 

 catalogued, 



AciDASPis CRosoTus, Lockc. The Fringed Acidaspis. 



From the Trenton limestone, in the town of Cape Vincent, Jefferson 

 county, N. Y. 



From Professor CHESTER DEWEY, of Rochester, N. Y. 

 A new fossil (Fucoid?) undescribed. From the Medina Sandstone. 



From DARIUS WHEELER, of Albany. 



SiLiciFiED Wood, from Eldorado county, California. Mr. Wheeler asserts 

 that this fragment was broken from a silicified tree eighteen inches in 

 diameter, and twenty-five feet in length, lying on the side of a hill 250 

 feet high, and about one-third of the distance from the base upwards. 



From the Hon. JAMES S. CAMPBELL, of Cherry-Valley, Otsego 

 county, N. Y. 



Four specimens of Glazed Slate, from the Marcellus shale; obtained 

 from the farm of the Hon. James S. Campbell, of Cherry-valley, Otsego 

 county. These specimens, at the request of the donor, are placed in the 

 case containing the minerals, &c. of Otsego county. 



From the Hon. SILAS M. BURROUGHS, of Medina, Orleans co., N. Y. 



A slab of Medina Sandstone, covered with the Arthrophycus harlani, 

 (fossil plant), of Hall. Palaeontology of N. Y., Vol. II, pa. 5, pi. I, 

 f. 1; pi. 2, flf. la, lb, Ic. 



From IRA SAYLES, Principal of the Rushford Academy, at Rushford, 

 " Allegany county, N. Y. 



A box of Geological Specimens, taken mostly from the drift formation, in 

 the vicinity of Rushford, Allegany county, N. Y. 



The following extract is taken from a letter accompanying tlie 

 specimens, directed to Dr. T. Romeyn Beck; dated at Rushford, 

 August 15, 1855: 



Dear Sir — This morning I send to your address a box of geological 

 specimens, taken mostly from our drift : there are some, however, from 

 the rock in place. I have not sought out glaring specimens'; for I deem 

 them of no more account, geologically, than those of a humbler sort. 



