Sec. 28. _And be it further enacted_, That the principal engineer, and in his absence the next in rank, shall have the superintendance of the said military academy, under the direction of the President of the United States; and the secretary of war is hereby authorised, at the public expence, under such regulations as shall be directed by the President of the United States, to procure the necessary books, implements and apparatus for the use and benefit of the said institution. This school of engineers of the U. States has been since augmented; and it is proposed to place it at Washington city. ENGINERY, the act of managing artillery; also engines of war. ENGUARD. See GUARD. ENLARGEMENT, the act of going or being allowed to go beyond prescribed limits: as the extending the boundaries of an arrest, when the officer is said to be enlarged, or under arrest at large. ENNEAGON, in, _geometry_, or _fortification_, is a figure consisting of 9 angles, and as many sides, capable of being fortified with the same number of bastions. ENNEGONE. See ENNEAGON. ENRANK, to place in orderly or regular rows. ENROLEMENT, _Fr._ enrollment. This term, according to the military acceptation of it in the French service, differs from the words engagement, enlistment, inasmuch as in some instances, the officer enrolls or enlists a soldier without his consent; whereas in others the soldier is enrolled, after having declared that he voluntarily enlisted. ENROLLED, ENROLLMENT, See INLISTED. ENSCONCE, to cover as with a fort. ENSEIGNE, _Fr._ the colors, originally derived from the Latin word _Insignire_. The French designate all warlike symbols under the term _enseigne_; but they again distinguish that word by the appellations of _drapeaux_, colors, and _étendarts_, standards. _Drapeaux_ or colors are particularly characteristic of the infantry; _étendarts_ or standards belong to the cavalry. We make the same distinctions in our service. See COLORS. ENSEIGNE _de vaisseau_, _Fr._ The lowest commissioned officer in the French navy. ENSHIELD, to cover from the enemy. ENSIFORM, having the shape of a sword. ENSIGN, in the military art, a banner, under which the soldiers are ranged according to the different regiments they belong to. See COLORS.