This book, no way calculated to teach the initiatory exercises, nor to give an idea of the combined manœuvres of larger bodies; nor any method of instruction, nor the duties of any other body than an infantry battalion, was improperly dignified with the name of a _system_. The most elevated in power as well as the most subordinate in military or militia duty, adopted this false notion of a system, without enquiring further than that it was established. When such a tract was held forth as sufficient by the authority of law and by the silent indifference of those who knew or ought to know better, it is not at all surprizing that every other object of military study was neglected, since every other was announced to be superfluous. This state of general indifference or unacquaintance with the business of war, gave rise to the American _Military Library_; in which the editor intended originally to have comprehended a _vocabulary of military terms_; and had made so much progress in its preparation, as to discover that it would make a large book, and that any thing short of a minute and comprehensive Dictionary, would be leaving the undertaking still incomplete. The general _want_ of knowlege on the subject, the inaccuracy of the notions which prevailed, and above all the great revolutions which modern times had produced in the whole economy and ordination of military science, decided the editor upon the necessity of rendering the undertaking as complete as practicable, by giving to the public a competent book of reference, so necessary to study in the acquisition of every species of knowlege. After some numbers of the Library had been published, the French Military Dictionary of 1768, and the English Military Dictionary of major James, fell into the editor’s hands. These works rendered much of what had been already done superfluous, though not entirely useless; the French work had been antiquated long before the revolution, by the changes which took place in the French establishment in 1788 and 1791, and still more by the total renovation which it underwent during the revolution. The English Dictionary labored under difficulties of another nature; adapted to England alone, the military system of England, called by the name of Dundas, which was only a modification of the Prussian system of Saldern, and the French system formed in imitation of the Prussian after the seven years war, must necessarily be to a British officer the standard of a work published for the British army; accordingly, although major James, both from his fine understanding and experience, was well acquainted with the defects of that system, he was still under the necessity of making it his standard.