slice, but all these terms are used to designate the
under-struck, back-spinning ball.

Reverse Twist=A ball that carries a rotary spin that curves one
way and bounces the opposite.

Break=A spin which causes the ball to bounce at an angle to its
line of flight.

4. LET=A service that touches the net in its flight yet falls in
court, or any illegal or irregular point that does not count.

5. FAULT=An illegal service.

6. OUT=Any shot hit outside legal boundaries of the court.

7. GOOD=Any shot that strikes in a legal manner prescribed by
rules of the game.

8. FOOTFAULT=An illegal service delivery due to incorrect
position of the server's feet.

9. SERVER=Player delivering service.

10. RECEIVER or STRIKER=Player returning service.

W. T. T. WIMBLEDON, July 1920