- Whirlpool Galaxy (Wikipedia)
The Whirlpool Galaxy, also known as Messier 51a (M51a) or NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus. It lies in the constellation Canes Venatici, and was the first galaxy to be classified as a spiral galaxy. It is 7.22 megaparsecs (23.5 million light-years) away and 23.58 kiloparsecs (76,900 ly) in diameter.
- Report of the International polar expedition to Point Barrow, Alaska, in response to the resolution of the [U.S.] House of representatives of December 11, 1884 (archive.org)
The Secretary of War has the honor to transmit to the House of Representatives the report of the International Polar Expedition to Point Barrow, Alaska, together with the letter of the Chief Signal Officer of the Army, of this date, submitting the report to this Department, the same being furnished in response to the resolution of the House of Representatives of December 11, 1884, as follows : “Resolved, That the Secretary of War be requested to transmit to the House of Representatives, if not inconsistent with the public service, the report of the International Polar Expedition to Point Barrow, Alaska, by Lieut. P. H. Ray, U. S. Army, for the years 1881, 1882, and 1883.” ROBERT T. LINCOLN, Secretary of War.