Mansard. A type of roof structure with two pitches, one, the lower, being very steep, and the other very flat pitch.

Manual. Of or pertaining to the hand; done or made by hand.

Marginal. The border or edge of an object.

Marking gage. A bar on which is placed a series of points, usually equidistant from each other.

Matching. Placing tongue in one member and a corresponding groove in another member, so that they will join each other perfectly.

Mediæval. Of or relating to the Middle Ages.

Miter-box. A tool for the purpose of holding a saw true at any desired adjustable angle.

Miter-square. A tool which provides adjustment at any desired angle.

Mullion. A slender bar or pier which forms the vertical division between the lights of windows, screens, etc.; also, indoors, the main uprights are stiles, and the intermediate uprights are mullions.

Obliterated. Erased or blotted out.