Magnets

"The magnetic ball is one of my own many inventions. It is simply an ordinary ball containing a small magnet which enables the player to hole-out with great precision, the iron in the hole (the ‘tin,’ it is called) attracting the magnet. For driving north the magnet ball is very good, but in driving east or west some allowance must be made for the skid of attraction. During a thunderstorm the carry of these balls is really astonishing."