The Centennial Exposition.—The Centre of the Main Building

The International Exhibition of 1876. No. 31

The Stow Flexible Shaft

Boat Exhibits at the Centennial

Gateways of the Nations

Portuguese Salt Exhibits at the Centennial

The Great Cataract of the Centennial

The International Exhibition of 1876

Some of the Results

Lessons in Mechanical Drawing

To Utilize Bones

The Scientific American Supplement General Index