Unpublished manuscript, 'Philosophical essays on the following subjects' by Joseph Mead Whilst the manuscript includes six essays, they are arranged as one single piece of prose, preceded by a single introduction. The titles of the six essays, listed on the first page of the manuscript, are as follows: - On the greatest force of currents of Air, called Winds; - On the force of Wind, impregnated with a particular quantity of moisture; - On the Cause of the greater force of Hurricanes, in the torrid zone, than of storms in high latitudes; - Observations on the operation of nature, in the prevention, and termination, of Hurricanes; - On the force of explosion, known by the name of Thunder; - The force of explosion of Thunder, as appears from calculation and phaenomena; and the force of explosion of Gunpowder by the action of time compared. Numerous emendations in ink appear throughout. Subject: Meteorology [1777]