Uc: Cryptic: "Time and 'Tide"

http://math.uchicago.edu/~wald/timeandtide.pdf

(Brought to a holiday party last Saturday.)

Uc: Cryptic: "In a Century of Letters . . ."

http://math.uchicago.edu/~wald/inacenturyofletters.pdf

(In honor of today's big crossword centennial.)

Uc: Cryptic: "Tripling Hither, Tripling Thither"

http://math.uchicago.edu/~wald/tripling.pdf

(Brought to a party.)