54 MINERAL SPRINGS OF THE UNITED STATES. [bull. 32. 
DISTRICT OF COLUMBIA. 
A number of the wells and springs within the limits of the District 
are chalybeate ; but none, even the strongest, is of much importance 
and the number is so small that no detailed list has been made. 
At Uniontown, or Anacostia, opposite Washington, and also near Le 
Droit Park, in the northeastern part, chalybeate springs exist. A well 
on Louisiana avenue, between Ninth and Tenth streets, in Washington, 
is said to be quite strongly impregnated with iron. There are several 
other localities within the city limits that are said to have chalybeate 
springs or wells. No analyses have been made. 
VIRGINIA. 
Virginia occupies the same position among the Southern Atlantic 
States that New York does among the Northern Atlantic States, in re- 
spect to both the number and the variety of her mineral springs. More 
than fifty localities are places of resort, some of them among the most 
famous in the country, and the waters of more than twenty are used 
commercially. Although the spring area proper is in the Appalachian 
region, mineral springs are also found in the more level country that 
stretches towards the coast from the foot of the Blue Ridge. Here the 
springs are largely chalybeate, as would naturally be expected. The 
thermal springs are confined to the mountain region. A large propor- 
tion of the springs are sulphureted, as is the case with so many springs 
in the adjoining States. 
The literature of the Virginia springs is quite extensive. Prof. W. 
B. Eogers, in his geological report on the State, devotes considerable 
space to the mineral springs. Since his report a number of books have 
been published, among them those of Burke and of Moorman. These 
have all been consulted in the preparation of the following table. 
Boyd's Resources of Southwestern Virginia, published in 1881, has 
also furnished much information; but by far the greatest amount 
has been obtained in answer to circulars and letters sent to various 
portions of the State. Eighty-seven analyses are given in the table, 
the number of springs analyzed being seventy-five, which is only about 
one-quarter of the springs included in the list. This number is, how- 
ever, slightly greater than the proportion in New York. 
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