MAT, coussin, a sort of thick web or texture, formed of spun-yarn, or of a variety of strands, or separate parts of a small rope; or of a number of rope-yarns twisted into foxes. The foxes are therefore larger or smaller, as containing a greater or lesser number of rope-yarns, in proportion to the thickness of the mat intended to be woven.

Mats are commonly used to fasten upon the outside of such parts of the standing rigging as are exposed to the friction of other ropes, in extending, shifting, or trussing up the sails, particularly the lower ones. The largest and strongest sort of these mats are called panches.

MATE of a ship of war, an officer under the direction of the master, by whose choice he is generally appointed, to assist him in the several branches of his duty. Accordingly he is to be particularly attentive to the navigation in his watch, &c. to keep the log regularly, and examine the line, and glasses by which the ship’s course is measured, and to adjust the sails to the wind in the fore-part of the ship. He is also to have a diligent attention to the cables, seeing that they are well coiled and kept clean when laid in the tier, and sufficiently served when employed to ride the ship. Finally, he is to superintend, and assist at the stowage of the hold, taking especial care that all the ballast and provisions are properly stowed therein.

Mate of a merchant-ship, the officer who commands in the absence of the master thereof, and shares the duty with him at sea; being charged with every thing that regards the internal management of the ship, the directing her course, and the government of her crew.

The number of mates allowed to ships of war and merchantmen is always in proportion to the size of the vessel. Thus a first-rate man of war has six mates, and an East-Indiaman the same number; a frigate of 20 guns, and a small merchant-ship, have only one mate in each: and the intermediate ships have a greater or smaller number, according to their several sizes, or to the services on which they are employed.

MESS, a particular company of the officers or crew of a ship, who eat, drink, and associate together.

MESS-MATE, a companion or associate of the above division. See the article Birth.

MIDSHIP, maitre, a term of distinction, applied by shipwrights to several pieces of timber which lie in the broadest part of the vessel; as,

Midship-beam, maitre-bau, the beam upon which the extreme breadth of a ship is formed, and which is situated in the midship-frame, nearly in the middle of her length, serving as a standard from whence the dimensions and proportions of the masts and yards are to be taken.

Midship-frame, maitre-couple, a name given to that timber, or combination of pieces, formed into one timber, which determines the extreme breadth of the ship, as well as the figure and dimension of all the inferior timbers.