"The following volumes of Infantry Tactics are based upon the French ordonnances of 1831 and 1845, for the manoeuvres of heavy infantry and chasseurs a pied. Both of these systems have been in use in our service for some year; the former having been translated by Lieutenant-General Scott, and the latter by Lieutenant-Colonel Hardee ... In this School [of the Battalion], several battalion manoeuvres have been introduced not in the original, several thrown out, and others changed and modified." -- From Preface, v. 1, p. 5-6.