Uc: Cryptics: "Through The Wood", "Play Till You're Loopy", and "I, II, XLIX"

http://math.uchicago.edu/~wald/throughthewood.html

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

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

(My annual pre-Mystery-Hunt cryptic, and two birthday cryptics.)