yes, temple had a secondary that you had to bring with you to the interview.
in terms of specific letters of rec, the only school that i applied to that was picky about what type of science letters of rec you send is tufts--they specifically want one bio and one chem letter (this was confirmed by the admissions office when i called to inquire.) so, upon hearing that, i didn't send the app fee to tufts because there was no possible way that i could have obtained a letter from a chem prof at that time. however, the strange thing is, much later in the application cycle, i received an interview invite to tufts despite my incomplete application. it said that all i needed to do was to send in the app fee and schedule an interview! 😕 i found that to be very strange being that the admissions office told me that i DEFINITELY needed a letter of rec from a CHEM prof to apply. so, if you have your heart set on tufts, perhaps you can just send them what you do have and maybe they'll overlook the replacement of one science letter with another?
-wasabi007