Terrace Deposits of the Monongahela Hirer. — White. 371 
vicinity of Morgantown. W. Va. A few small fragments were brought 
to the Museum by Dr. Hough, but it was not until 1894 that a collec- 
tion of any magnitude was obtained. These proved to be of so much 
interest that the collection in the West Virginia University has also, by 
the kindness of S. B. Brown, professor of geology, been placed at my 
disposal. This material has all been made use of in the following ex- 
amination. 
The study of these plants has not been quite completed, but enough 
has been done to transmit the following presentation. A few well pre- 
served examples appear to be new to science or at least not readily 
identifiable with known forms. 
Thus far ten forms have been determined with much certainty as 
follows: 
1. Eq}dsetum arvense L. 
A small fragment of a sterile branch. 
This species is distributed from Virginia to California and north- 
ward to Greenland, and is also found in Europe. It is very abundant 
and attains perhaps its maximum development in New England. 
2. CyperuH sp. 
There are a number of stems that Vjelong evidently to some cypera- 
ceous plant, but they are too fragmentary to be determined. 
3. Potamogeton )-obbinsU Oakes. 
There are a great number of fragments of stems and leaves of this 
species, all so w^ell preserved as to leave no doubt as to the correctness 
of their identification. Its present distribution is from New Brunswick 
to New Jersey, north of lake Superior and northward. 
4. Liquidamhar styracifolia L. 
A number of fruiting heads and leaves are referred to this species. 
Its fjresent distribution is from Connecticut and Illinois to Florida and 
Texas. 
5. .Platanus occidentalis L. Sycamore. 
Several fruiting heads are referred to this species. It is found from 
Maine to Vermont, south. 
6. Ulmus racemosa Thomas. The White Elm. 
A well preserved leaf is referred to this species. It is now found from 
Ontario and Vermont to Missouri and Kentucky. It is nowhere very 
common, but is most abundant at the north. 
7. Quercus falcafa Mich. 
Two finely preserved leaves of this species. It is found from Long- 
Island to Florida. 
8. Betula nigra L. Black Birch. 
There are several leaves of this species all perfectly preserved. The 
tree is now distributed troxn Massachusetts to Florida. 
9. Fagus fei-ruginea Ait. Beech. 
A large number of well preserved leaves are referred without hesita- 
tion to this species. It is a common tree from Nova Scotia to Florida 
and west. 
10. Casta nea jnimila MiW. Chinquapin. 
