=LOCKJAW.=--In the lesser injuries, where bleeding is not an important feature, and in all wounds as well, after bleeding has been stopped, the main object in treatment consists in cleansing wounds of the germs which cause "matter" or pus, general blood poisoning, and lockjaw. The germs of the latter live in the earth, and even the smallest wounds which heal perfectly may later give rise to lockjaw if dirt has not been entirely removed from the wound at the time of accident. Injuries to the hands caused by pistols, firecrackers, and kindred explosives, seem especially prone to produce lockjaw, and fatalities from this disorder are deplorably numerous after Fourth-of-July celebrations in the United States. The wounds producing lockjaw usually occur in children who explode blank cartridges in the palm of the hand. In this way the germs of the disease are forced in with parts of the dirty skin and more or less of the wad from the shell. Since lockjaw is so frequent after these accidents, and so fatal, it is impossible to exert too much care in treatment. The wound should at once be thoroughly opened with a knife to the very bottom, under ether, by a surgeon, and not only every particle of foreign matter removed, but all the surrounding tissue should be cut out or cauterized. In addition, it is wise to use an injection under the skin of tetanus-antitoxin, to prevent the disease. Proper restriction of the sale of explosives alone will put a stop to this barbarous mode of exhibiting patriotism. =Treatment.=--It is not essential to use chemical agents or antiseptics to rid wounds of germs and so secure uninterrupted healing. The person who is to dress the wound should prepare to do so at the earliest possible moment after giving first aid. He should proceed promptly to boil some pieces of absorbent cotton, as large as an egg, together with a nail brush in water. Some strips of clean cotton cloth may be used in the absence of absorbent cotton. The boiling should be conducted for five minutes, when the basin or other utensil in which the brush and cotton are boiled should be taken off the fire and set aside to cool. Then the attendant should scrub his own hands for five minutes in hot water with soap and brush.