GEOLOGICAL SOCIETY. 



175 



to elucidate the history of the Atlantic Tertiary forma- 

 tions. 



Since Mr. Taylor's Memoir on the Fossil Fucoides 

 went to press, we are gratified in being able to announce 

 the arrival of magnificent specimens of some of the spe- 

 cies, from localities cited by Mr. T. These interesting 

 geological specimens, due to the liberality of Dr. James 

 Mease, of this city, embrace masses of sandstone rock, 

 in some instances several feet in extent, the surfaces of 

 which are replete with beautiful petrifactions of these 

 curious vegetables. They principally consist of the F. 

 Brongniartiij F. Alleghaniensis, and the Lewistown 

 species. 



Mr. T. has recently informed us, that during the 

 course of the present summer, he has observed at least 

 two nondescript species of Fucoides in the old red sand- 

 stone of Tioga county Pennsylvania. We hope to see 

 these fossils figured and described in the succeeding 

 part of this volume. 



In thus attempting a brief sketch of all that is novel 

 or interesting in a highly important department of know- 

 ledge as pursued in the United States, we have thought 

 it unnecessary to enter more minutely into the detail of 

 individual exertion ; those who feel an interest in Ame- 

 rican geology will of course refer to the original sources 

 of information. 



