when I said counselers, I meant advisers (sorry for the confusion.) Most departments have them. Here is the
biology advising office, and here's one for
english. The chemistry undergrad adviser is
here. You just have to go on the department website to find the info for the academic advisers.
Edit: I see that you already know about the advisers... I guess that you will have to crash the chem class tomorrow. Did you sign up for the
waiting list yet? You can also try to crash classes with large amount of seats in the discussion sections even if you cannot directly enroll the class on the Gold website. For example, CLASS 40 seems to have a lot of spaces when you look at the empty seats in the various discussion sections.