32. The service is a fault as provided for by rule 9, or if the ball served touch the server's partner or anything which he wears or carries; but if the ball served touch the partner of the re ceiver or anything which he wears or carries, before it hits the ground, the server wins the point.
33. If a partner serve out of his turn, the partner who ought to have served shall serve as soon as the mistake is discovered, but all points scored, and any fault served before such discovery, shall be reckoned. If a game shall have been completed before such discovery, the order of service remains as altered.
34. The players to receive the service shall receive it alter nately throughout each game. The order thus established shall not be altered during the set.
35. The ball shall be struck alternately by one or other player of the opposing pairs, and if a player touch the ball in play with his racket in contravention of this rule, his opponents win the point.
I. In all tests for deformation conducted under rule 3, the machine designed by Percy Herbert Stevens and patented in Great Britain under patent No. 230,250, together with the sub sequent additions and improvements thereto, shall be employed.
2. The test shall be conducted at a temperature of approxi
mately 68° F and any ball to be tested shall be of that temperature throughout when the test is commenced.
3. Immediately before any ball is tested it shall be dropped four times from a height of ioo in. on a concrete base.
4. To ascertain the deformation of any ball, three readings shall be taken—one each of three diameters at right angles to one another—so chosen that initially neither platen of the machine shall be in contact with any part of the cover seam. The average of these three readings shall be the deformation reading.
5. After the ball has been placed in position, the contact weight applied, the beam brought to the pointer level, the point ers set at zero, and the test weight placed on the beam, the pres sure shall then be applied to the ball by turning the hand wheel at a uniform speed, and exactly five seconds shall elapse from the instant the beam leaves its seat until it is brought to the pointer level, whereupon the turning shall cease and the reading shall be taken.
6. The limits specified are fixed for a test conducted in an atmospheric pressure resulting in a barometric reading of ap proximately 29.95.