GEOLOGY AND MINEBALOGY. 47 



only, therefore, refer our readers, for more ample details, to the 

 pages of the work. 



In laying down for the present the report of the Smithsonian In- 

 stitution, (and it is with no little regret that we lay it down,) we 

 derive our chief consolation from the recollection that it is not a 

 solitary work, but one of a series, and that we may look forward to 

 a renewal on each succeeding year of the enjoyment Ave have found 

 in the perusal of the volume that we have just closed. 



G. T, K. 



SCIENTIFIC AND LITEEAEY NOTES. 



GEOLOGY AND MINERALOGY. 



FOSSILS FROM ANTICOSTI. 



During a recent visit to the Museum of the Geological Survey in Montreal, we 

 were much gratified by the inspection of a fine collection of fossils, just received 

 by Sir William Logan, from the Island of Anticosti. The greatest praise is due 

 to Mr. Richardson, by whom, in the short space of a few months, this really mag. 

 nificent collection was obtained. A preliminary examination by Professor Hall, of 

 Albany, and Mr. Billings, the palaeontologist attached to the Survey, has shewn the 

 existence of a great number of new Brachiopods and other types — some, indeed, 

 of a character at present altogether problematical. Amongst other facts of 

 interest brought to light by the collection, we may mention the simultaneous oc- 

 currence in one of the Anticosti beds, of many well-marked forms belonging to 

 both the Lower and Upper divisions of the Silurian series : a phenomenon not 

 hitherto observed, or at least to a similar extent, in American rocks — the line of 

 demarcation between the Upper and Lower Silurians of the Western World, being, 

 as a general rule, very strongly pronounced. The lowest of the observed beds in 

 Anticosti itself, belongs to the Hudson River Group; but the Sillery formation 

 (the next in an ascending order) so largely developed along the Southern shores 

 of the St. Lawrence, appears to be entirely wanting. Geologists may look forward 

 with much interest, to the results of Professor Hall's detailed examination of this 

 important addition to our knowledge of Palaeozoic forms. 



ASAPH US LATIJ1ARGINATUS. 



[A. Canadensis — e. j. c.J 

 In the Canadian Journal for September of last year (vol. 1, p. 482), we called 

 attention, under the name of Asaphus Canadensis, to a new form of Trilobite, from 

 Whitby, iu Canada West, Quite recently, we have received a letter from Professor 

 Hall, in which that able palaeontologist suggests to us that the Trilobite in ques- 

 tion is probably his Asafhus latimarginatus. Professor Hall states that the 



