Global attention in scientific, industrial, and governmental communities to traces of toxic chemi...

Letter From the Secretary of War - Transmitting Letter of the Chief Signal Officer on the Climate...

Zones of Stars Observed at the United States Naval Observatory - With the Meridan Transit Instrum...

Life of Captain Nathan Hale - the martyr-spy of the revolution is an unchanged, high-quality repr...

Memorial Ceremonies at the Graves of Our Soldiers - Saturday, May 30, 1868 is an unchanged, high-...

A Memorial of Joseph Henry is an unchanged, high-quality reprint of the original edition of 1880....

Surgical memoirs of the War of the Rebellion is an unchanged, high-quality reprint of the origina...

Postal savings banks - An argument in their favor, with appendices is an unchanged, high-quality ...

The war of the rebellion - A compilation of the official records of the Union and Confederate arm...

Flags of the Army of the United States - carried during the War of the Rebellion, 1861-1865 is an...

Report of the Committee on Banking and Currency - Together with Hearings there of,. is an unchang...

Report of the Military Services of Gen. David Hunter, U.S.A. - during the war of the rebellion, m...