An Account of the Earthquake Which Was Felt at Manchester and Other Places, on the 14th Day of September, 1777
Sundry Papers Relative to an Accident from Lightning at Purfleet, May 15, 1777
The Force of Fired Gun-Powder, and the Initial Velocities of Cannon Balls, Determined by Experiments; From Which is Also Deduced the Relation of the Initial Velocity to the Weight of the Shot and the Quantity of Powder