The duration of impact in a drive at golf has been measured by the most competent authority to be one ten-thousandth of a second. Photographs of the impact of the golf club with the golf ball taken at the one twelve-hundred-and-fiftieth of a second, are merely blurs. There is no clear definition of the club whatever. We can see from this that the rate of speed at which the golf club is travelling is extreme, even had we not the scientific measurement of the exact amount of time consumed during the contact. It will be obvious to a very ordinary understanding that when a club is travelling at this terrific pace it would be impossible for anyone to impart into the line of travel of the club head a new direction at, say, two feet from the ball, without ruining both the force and the direction of the ball. Therefore, it is evident that if one could close one's eyes when the club head was two feet from the ball and still keep one's head in exactly the same position, the impact would be practically not affected at all.

This is the undoubted fact in so far as regards the work of the eye. It fulfils its duty very early in the stroke; but although the explanation of the function of the eye is so incorrectly given, still "Keep your eye on the ball" is, and ever will be, a sound golfing maxim, for it is not given to golfing man to be able to lift his eye and at the same time to keep his mind concentrated on his stroke, and to keep his head in the same place as it was in when he addressed his ball. Therefore, although it is not so absolutely necessary to keep one's eye on the ball as is generally laid down, it is expedient to preach to the fullest extent and to insist on what Harry Vardon calls "the parrot cry of the links."

Most writers who deal with the matter of keeping one's eye on the ball are not satisfied with exhorting the player to keep his eye on the ball until after the moment of impact; they go further still and insist upon the fact that he must continue to gaze at the piece of turf whereon the ball lay, long after the ball has departed to the hole. This, again, is an absolute fallacy. It is only excusable on the principle that the greater includes the less, and that by insisting on one gazing at the turf long after the ball has sped on its way, one may be able to make the player do what he should do, and that is just to keep his eye on the ball until the moment of impact, for if we follow the advice given by many notable men of continuing to gaze at the turf after the ball has been driven, there can be no doubt whatever that we do much to spoil the rhythm and effectiveness of the drive.

To preserve these we have been told that the head must be kept immovable throughout the golf drive, and that one must keep one's eye on the ball until it has been driven, and on the place where it was after it has been driven. However, following Vardon's explanation of the drive and taking what we know of this stroke ourselves, it will be remembered that at the moment of impact, "simultaneously," Vardon says, the body moves down the line of flight to the hole. It follows, therefore, that if one continues turf-gazing after one has hit the ball, that one's body is going on its way towards the hole whilst one's head is being held backward in the opposite direction to the travel of the body. This is absolutely bad golf, and Vardon does not do this himself.

The truth with regard to the proper management of the eye in the golf stroke is that it should move simultaneously with the ball, for if there be any attempt whatever to drive the ball and to keep the head in the same position as it was at the moment of address, this will inevitably result in preventing the right shoulder getting through and the body following it as it ought to do, for a rigid head and neck will prevent any follow-through.

Vardon is very explicit about the value of timing the body so that it goes forward down the line of flight towards the hole at the moment the stroke is made. He shows us, as a matter of fact, that this forward movement is practically simultaneous with the impact of the club on the ball. It will be obvious, then, to anyone, that this turf-gazing after one has hit the ball, which is recommended by the leading authorities of the game, is absolutely bad golf, for it must inevitably interfere with the follow-through.

At page 174 of The Complete Golfer Vardon says:

Keep your eye on the ball until you have hit it, but no longer. You cannot follow through properly with a long shot if your eye remains fastened on the ground. Hit the ball and then let your eye pick it up in its flight as quickly as possible. Of course this needs skilful timing and management, but precision will soon become habitual.

It was by the merest chance that I saw this passage after I had written my chapter on "The Function of the Eyes," although I am now incorporating it herein.

I am very glad to have Vardon's authority to back me up in discrediting the silly idea about turf-studying; but although I have him with me I cannot hold him guiltless of spreading the error, for he has been photographed repeatedly illustrating it in a style which he never uses in actual play. This may be seen in the series of photographs in Fry's Magazine already referred to, and also at pages 89 and 97 of Great Golfers, wherein this great player is shown in positions which in actual play he would not understand how to get into; but people who know no better, and have not the real power of comparative analysis and close thinking, are led away and suffer for this kind of foolishness merely because it is associated with a great name.