Ferguson, Edward, fl1806 (Lieutenant Colonel)
Found in 3 Collections and/or Records:
Stating that he had made a successful trial of his log to ascertain the rate of a current and requesting a reward to purchase a patent.
Enclosing a description of his method for ascertaining the rate of a ship in a current at sea, and requesting that this be laid before the Board of Longitude.
Draft of a letter from [George Gilpin?] informing Ferguson that the Board would not meet again before that December and that they did not offer advance sums of money without first being convinced of the value of a proposal.