(T) means with a declared trump.
(N T) means with no trumps.
NOTES ON ILLUSTRATIVE HAND NO. 1
Trick 1.—The dealer refuses to give up the A of spades, as he wishes to exhaust the spades in one hand before he attempts to clear his club suit.
Trick 4.—B, hoping to take the last club from the dealer's hand, refuses to part with the A of clubs.
Trick 6.—B tries to put his partner in the lead so that he may make the spades.
ILLUSTRATIVE HAND NO. 1