Letter from John Henry Tudor to his father, William Tudor, June 1, 1797

This letter was sent to Tudor's father in London, England in care of Thomas Dickason & Co.

Letters from William Tudor to his family,

Four letters written from St. Pierre, Martinique, Basseterre, Guadalupe, and St. Barts. In one letter written over a number of days, he describes extensively his travels in Antigua, and the various people he met, including Captain William Jarvis. He also details his meeting with Ralph Payne, 1st Baron Lavington, the governor of the Leeward Islands, regarding the prospects of importing ice.

Letter from James Winthrop to William Bentley, 1783 December 1

Two leaves containing a four-page handwritten letter from Winthrop to Bentley providing a biographical description of English judge John Bradshaw (1602-1659).

Letter from Samuel Willard, Exeter, New Hampshire, to William Willard and Katherine Willard, Petersham, Massachusetts, June 1, 1804

Willard discusses his brother Ephraim Willard’s death.

Observation of manganese deposits made during the 1936 transect of C/S Lord Kelvin through the Northern Atlantic Ocean

In May and June 1936 Dr. C. S. Piggot of the Geophysical Laboratory, Carnegie Institution of Washington, took a series of 11 deep-sea cores in the North Atlantic Ocean between the Newfoundland banks and the banks off the Irish coast. These cores were taken from the Western Union Telegraph Co.'s cable ship Lord Kelvin with the explosive type of sounding device which Dr. Piggot designed. All but two of these cores (Nos. 8 and 11) are more than 2.43 meters (8 feet) long, and all contain ample material for study. Of the two short cores, No. 8 was taken from the top of the Faraday Hills, as that part of the mid-Atlantic ridge is known, where the material is closely packed and more sandy and consequently more resistant; No. 11 came from a locality where the apparatus apparently landed on volcanic rock that may be part of a submarine lava flow.