10. The manipulation of the blade through the water is of great importance, otherwise the blade will not keep square, and regular pressure against the water will not be attained. Now, since the angle of the blade to the water has to be a constant one, and since the plane on which the blade works also is required to be uniform, till the moment for the feather has arrived, it stands to reason that the wrists and arms, which are changing their position relatively with the body while the stroke progresses, must accommodate themselves to the progressive variations of force of body and arms, so as to maintain the uniform angle and plane of the oar. Herein much attention must be paid to maxim 4 (_supra_). If an oar is held in the fist instead of in the fingers, the play of the muscles of the wrist is thereby crippled, and it becomes less easy to govern the blade. 11. On a somewhat similar principle as the foregoing, the arms, on the recovery, are changing their position and angle with the body throughout the recovery; but the blade has to be kept at a normal level above the water all the time. It is a common fault for the oarsman to fail to regulate the height of the feather, and either to 'toss' it at some point of the recovery or else to lower it till the blade almost, if not quite, touches the water. Nothing but practice, coupled with careful observations of the correct manner of holding an oar, can attain that mechanical give-and-take play of muscles which produces an even and clean feather from first to last of recovery. 12. We are still, for the sake of argument, dealing with fixed-seat oarsmanship. Slides will be discussed subsequently. In using the legs, on a fixed seat, for recovery, the toes should feel the strap, which should cross them on or below the knuckle-joint of the great toe. Each foot should feel and pull up the strap easily and simultaneously, so as to preserve even position of body. The legs should open well, and allow the body to trick between them as it swings forward. 13. If the body swings true, the oar will keep home to the rowlock; there should be just sufficient fraction of weight pressed against the button to keep it home; if it is suffered to leave the rowlock, the oarsman tends to screw outwards over the gunwale, and also, when he recommences the stroke, he loses power by reason of his oar not meeting with its due support until the abstracted button has slipped back against the thowl. 14. The pace of recovery should be proportionate to the speed of stroke. If recovery is too slow, the oarsman becomes late in getting into the water for the next stroke; if he is too quick, he has to wait when forward in order not to hurry the stroke.