produce trouble where it does not already exist. The feat is so popular with the jiu-jitsu instructors, and is considered to be of such value, that it is generally taught in the sixth or seventh lesson. A very little practice will show the investigator how much this exercise can do for the strengthening of the muscles. The assailant must remember always to tauten all the muscles that are employed. The man on the defence has no counter beyond employing the arm-pinch that is shown in the illustration. While he cannot avoid going over his assailant's head, the man on the defence, if he employs the arm-pinch to the best advantage, will find that his chances are improved vastly if he has secured an effective arm-pinch. While the two men are struggling on the floor each should endeavour to employ whichever of the feats described or discovered seems to meet best the demands of the situation.
By the time that the student has gone thus far he is taught to try the throat-grip. This is a very simple and effective method of choking an adversary. Both hands are employed in the grip. The assailant makes a lightning-like
