464 #. B. Andrews—New and interesting Coal Planis. 
Coal-measures than my Ohio form. He also finds the same 
A. Jacksoni in Vespertine slate in Greenbrier Co., W. Va. 
which is low in the original geosynclinal trough or depression 
West Virginia (described by me in another paper read at Detroit 
and published in this Journal for Oct.), it is a long way down to 
the Devonian formation, which, in New Brunswick. yielded to 
the hammer of Prof Hartt his Megalopteris Dawson. The new 
species from Ohio are directly separated from any Ohio Devo- 
nian rocks by, first, a few feet of Coal-measure strata, second, by 
the lower Carboniferous Maxville limestone, the equivalent and 
representative of the Chester limestone of Illinois, there 600 to 
800 feet thick, and third, by the Waverly sandstone, over 600 
feet thick. These facts are of no little interest as showing 
and but one in the Devonian would determine this to 
true Coal-measure form. Then the Devonian species becomes 
the prophetic one. 
Growing in our little marsh with the Archeoptleris and the 
Megalopteris is a new and beautiful fern of a new genus of a 
_ vittata Brongt., reported by Pres. Hitchcock, from the T 
soins Bae ipa c 
