The Great Falls of the Genesee, Rochester, New York, with a double rainbow.

The Funeral—catafalque at Springfield, Illinois,' President Abraham Lincoln's funeral in the Capitol : illustration for 'Frank Leslie's illustrated newspaper' (10 June 1865).

The Flatiron Building : Fifth Avenue and Madison Square, New York City.

The Falls of Niagara from the upper balcony of Brown’s Hotel, Ontario, Canada.

The Declaration of Independence after John Trumbull : preparatory drawing for the engraving.

The Bridewell Prison, New York City.

The Blockade of Mobile—chasing a blockade runner at night' : illustration for 'Frank Leslie's Illustrated Newspaper' (21 May 1864).

The Bay of New York from Hudson City, New Jersey.

The 'Lord's prayer' : silhouette.

The 'Constitution' in close action with the 'Guerriere' : study for an engraving.

Terrific engagement between the 'Monitor' and 'Merrimac' : study for a lithograph.

Sunrise : Flatbush and the ocean from the Green-Wood Cemetery, Long Island [Brooklyn], New York.

Submission illustration for the Central Park competition : view from the site of the principal entrance on Fifty-Ninth Street, looking northerly—illustrating improvements, New York City.

Submission illustration for the Central Park competition : view from the site of the principal entrance on Fifty-Ninth Street, looking northerly, New York City.

Study of trees, Catskill Mountains, New York.

Study of trees and rocks, Catskill Mountains, New York.

Study of tree trunks.

Study of rocks on the shore of Lake George, New York, Folio 11r in a sketchbook.

Study of four tree trunks (three birches).

Study of entrance hall to Woolworth Building, Cass Gilbert, architect, April 15, 1912.

Study of a Tree, Schroon Lake, New York; from the disassembled "Schroon Lake Sketchbook"

Study of Two Trees; from the disassembled "Schroon Lake Sketchbook"

Study of Two Trees; from the disassembled "Kingston Sketchbook"

Study of Two Trees; from the disassembled "Kingston Sketchbook"