520 THE DEVONIAN PERIOD. 



Sandstones ...... 



Shale, with obscure remains of plants 



Sandstones, barren, so far as examined 



Sandstone and shale, with a few Calamitcs and 

 Cordaltes . . . . . . • 



Sandstone and coarse shale, with obscure mark- 

 ings . . . . . . . .5 



10 



V 



Light greenish, coarse shale, with fern-stems, 



Cordaltes, and obscure markings, Carpolites (?) „ 7 



Sandstones and coarse shales, with badly pre- 

 served vegetable remains . . . . 1 8 „ 9 



Plant-bed No. 4 . . . . . . 1 „ 



Coarse shales, affording at the point where the line of section crosses 

 it— 



Cordaltes Bobbli, Daws. — Calamites transltlonls, Goeppt. — Neu- 

 ropterls polymorpha, Daws. — Psllophyton glahriim, Daws. — 

 Pinnularla dlspalans., Daws. 



I have examined at two different points, in the eastern part of this 

 locality, a bed which appears to correspond to this. It is characterized 

 there by a veiy beautiful NenrojJterls (iV. Dawsoni, Hartt) with long 

 linear lanceolate pinnules decurrent on the rachis, to which they form 

 a broad wing. The pinnules are often four inches in length. This 

 is one of the most beautiful ferns occurring at the locality. Several 

 other new forms are associated with it. Among these is a magnificent 

 Cay^dlocarpum, nearly two inches in diameter (C. Balleyl, Daw.). 



Sandstone with obscure markings . . .9 feet 6 inches. 



Plant-bed No. 5 6 „ 



Soft, fine-grained light- greenish shale. 



Cordaltes Rohhll, Daws. Extremely abundant. — Calamites cance- 

 formls, Brongn. Found occasionally. — Psllophyton (?) glahrum, 

 Daws. — (?) Asterojyhyllitcs aclcularls, Daws. — Pecopferls [Ale- 

 thoptcrls) dlscrepans, Daws. Quite abundant. — Hphenopterls 

 marglnafa, Daws. Quite abundant. — 8j)henopterls margl- 

 nata. — Pecopterls, sp. nov. (?) — Hymenop)hyllltes, sp. (?) — Neu- 

 ropterls polymorp)ha, Daws. Very abundant. — Splrorhls 

 occurs in the bed, attached to the leaves of Cordaltes. I have 

 never detected it in any of the beds higher up. 



Compact flaggy sandstones and coarse shales, with a few 

 plants, 8 feet. 



