Related Clues:

• H.S. course
• See 34-Across
• Sch. course concentration
• Fi lead
• Subj. of three of the six Nobel Prizes
• Poly-___ (college major)
• Noted twin
• Half a celebrated set
• Coll. major
• Frat letters
• Our lang.
• A Siamese twin
• Grade sch. class
• See 35-Across
• ___-fi