answer:You use the same language you used here (but check for word order – your typing got a little garbled.) Dear Professor Lifesaver; I will be completing my undergraduate project on (description or title here) on Dec. 1, 2011, and hope that you would be willing to be the second reader. Professor Firstreader will be evaluating this paper (project) also. Forgive the informality of an email. but I understand that you do not have office hours this semester. If you would like to discuss this in person, I would be happy to meet you at your convenience. Thank you for your consideration in this matter. Sincerely yours, Eager student.