UNITED STATES. 157 
its polar limit) Impatiens fulva, the Button-Bush (Cephalanthus 
occidentalis), Bidens bipinnata and chrysanthemoides, Acnida con- 
nabina. In the moist pastures Cassia Marilandica formed tufts ; 
and in some swampy willow thickets I picked Stachys (aspera ?), 
Isnardia palustris, Polygonum scandens, and a Cuscuta allied to 
C. Europea, which invested the lower willow bushes with its bright 
red or yellow entangled stems in greater luxuriance and pro- 
fusion than I ever witnessed, excepting in the island of Grenada, 
where not only the shrubs, but trees of twenty or thirty feet 
in height, were so matted over by a Dodder with racemose inflo- 
Tescence, as to have their leaves and branches in a great degree 
concealed from view, the parasite having apparently no attachment 
to any particular natural order, but clinging impartially to all 
plants within its reach. 
West Chester, Aug. 11th. 
Set off with D. Townsend, Esq., to visit the North Valley Hills, 
about six miles from this borough. The road was very bad in places, 
but the country beautifully varied and undulating, much re- 
sembling some parts of England in its intermixture of pasture, 
arable, and woodland, with neat farms, and all the features of a 
. Prosperous agricultural district. Our vehicle, the ordinary travel- 
ling carriage of the country, called a Rockaway, was of a singularly 
light construction, a sort of caléche, on two wheels, of very large 
size, but excessively narrow and slight in appearance, though 
really capable of withstanding the severest strain, the spokes 
being of hickory, and the naves of the common Turelo, Black or 
Sour-gum (Nyssa multiflora), which, like the former, is of extreme 
toughness, and still more difficult to split. The great diameter 
and narrowness of the wheels enable them to cut their way 
through the deepest mud or sand; where those of lesser circum- 
ference and broader gauge would infallibly stick fast, whilst 
by their great distance apart, and projection from each side of the 
body, the chance of upsetting is materially diminished. The trees 
Were entirely of the hard-wood kind, (the Pines being sparingly 
found in this part of Pennsylvania), and consisted chiefly of the 
following species: Black and White Oak (Quercus tinctoria and 
VOL, VIL Q ; 
