In the military part of this history, therefore, the author can promise not much that is new.

He can only engage for the correctness with which facts are stated, and for the diligence with which his researches have been made.
The letters to and from the commander in chief during the war, were very numerous and have been carefully preserved.

The whole of this immensely voluminous correspondence has, with infinite labour, been examined; and the work now offered to the public is, principally, compiled from it.

The facts which occurred on the continent are, generally, supported by these letters, and it has therefore been deemed unnecessary to multiply references to them.

But there are many facts so connected with those events, in which the general performed a principal part, that they ought not to be omitted, and respecting which his correspondence cannot be expected to furnish satisfactory information.
Such facts have been taken from the histories of the day, and the authority relied on for the establishment of their verity has been cited.