Transactions of the Geological Society of Pennsylvania. 347 



ral experience hitherto, affords great encouragement to hope, that 

 manufactures may be sustained in this country, consistently with pure 

 morals and enlightened intelligence. Success must, however, under 

 God — depend entirely, upon wise and continued effort sustained 

 with sleepless vigilance and with untiring energy. 



Art. XXIII. — Notice of the Transactions of the Geological So- 

 ciety of Pennsylvania — August, 1834, Part I. 



Tfus publication contains much valuable information and we trust 

 it is only an earnest of more to come. 



1 . Fossil Marine Plants. 



The notice of fossil marine plants of the family Fucoides, presents 

 an acceptable addition to our geological knowledge. The existence 

 of marine plants in the region on the Juniata, was first announced, 

 several years ago, by Dr. Harlan.* 



Mr. R. C. Taylor, F. G. S. now confirms the existence of very 

 extensive deposits of fossil fuci, in the grauwacke group of central 

 Pennsylvania. Several species have been observed in the brown 

 sandstone of Tussey mountain, near Alexandria in Huntington Coun- 

 ty, and farther south, in Bedford County. 



In the white sandstone of the Swan mountains in Centre Coun- 

 ty, the fossil fuci prevail seventeen hundred or eighteen hundred 

 feet above the level of the sea. At Muncey Ridge . in Lycoming 

 County, fine specimens were obtained in white sandstone ; at this 

 place and at Lewiston they occur four hundred and fifty feet above 

 tide-water ; also on the eastern slope of the Alleghany Ridge, fossil 

 fuci are associated with Productae, at points more than one hundred 

 miles apart. 



In the narrows of the Juniata, that river flo\\"s between cliffs of 

 sandstone seven hundred feet high, and in the lower strata in the 

 Shade mountain, the strata containing the marine plants are brought 

 into view by the cuttings for the road and for the canal. They are 

 found in shale, in sandstone, Sec. In one place, the fucus beds are 

 laid bare to the height of nearly fifty feet, and here seven courses of 



• Jour, of the Acad, of Phil. Vol. vi. p. 289. 



