From introduction: In presenting this paper the writer has two objects in view. The first is to add to the general knowledge respecting the geology of this central district [Appalachian coal basin]. The groups determined in this region will be carried over the adjoining territory if they can be distinguished and they afford a type-section of the Coal-measures where they are probably best developed. The results are not put forth as final, but as representing the most probable conclusions from the observed facts.

From introduction: The object of this memoir is to give some account of the geology of the lower Potomac formation in Virginia, where it is perhaps most typically developed.

Patent for a new and useful ball caster, including instructions and illustrations.

Patent for a new and useful combined trunk and dressing case. This design is to "provide a simple and efficient device of the character specified having a large amount of space for receiving different articles of wearing-apparel and for inclosing various kinds of toilet appliances" (line 9 - 14).

Patent for certain new and useful improvements in valved couplings for train pipes, including instructions and illustrations..

Map illustrating the site of the battle between the Monitor and the Merrimack during the Civil War including part of Chesapeake Bay, Hampton Roads harbor, and the surrounding areas. Cities, forts, railroads, and batteries are noted on the map and some depths are shaded. This map accompanies the War of the Rebellion papers which include documentation of the action between the ships which took place March 8-9, 1862. Scale 1:211,200 (5 statute miles per 1.5 inches)

Map illustrating the region surrounding Suffolk, Virginia. Cities, forts, railroads, swamps, and military forces are indicated. This map accompanies the War of the Rebellion papers which include documentation of the Union North Atlantic Blockading Squadron aiding the defense of Suffolk. Scale 1:101,376 (1 statute mile per 5/8 inch)