NERVES, are cylindrical whitish parts, usually fibrose in their structure ; or com posed of clusters of filaments, arising from the brain, or rather from its medulla oblongata within the skull, and from the spinal marrow, and running from thence to every part of the bodx. See Arizrour. NET, a device for catching fish and fowl. The taking fowls by nets is the readiest and most advantageous of all others, where numbers are to be taken. The making the nets is. very easy, and what every true sportsman ought to be able to do for himself. All-the necessary tools are, wooden needles, of which there should be several of different sizes, some round and others flat : a pair of round pointed and flat scissars, and a wheel to wind off the thread. The pack thread is to be of different strength and thickness, according to the sort of birds to be taken; and the general size of the meshes, if not for very small birds, is two inches from point to point The nets should neither' be made too deep nor too long, for they are then. difficult to manage ; and they
must be verged on each side with twisted thread. The natural colour of the thread is too bright and pale, and is therefore in some cases to be altered. 'The most usual colour is the russet, which is to be ob tained by plunging the net after it is made into a tanner's pit, and letting it lie there till it be sufficiently tinged ; this is of a double service to the net, since it pre serves the thread as well as alters the co tour. The green colour is given by chop ping some green wheat, and boiling it in water, and then soaking the net in this green tincture. The yellow colour is given in the same manner, with the de coction of celandine, which gives a pale straw colour, which is the colour of stub ble in the harvest time. The brown nets are to be used on ploughed lands, the green on grass grounds, and the yellow on stubble lands.