I was a non-degree-seeking student at the University of Texas at Austin at the time. I already has a master's degree in physics from Southwest Texas State University in San Marcos, but couldn't resist taking a low-level quantum theory class from Steven Weinberg. He very seldom taught them. The text was the sort-of standard at the time (and may still be), David J. Griffiths' Introduction to Quantum Mechanics. But Weinberg gave us his own problem sets and handed out typed-up copies of his notes (and eventually published his own book on quantum mechanics). We had no exams, we only had to hand in the four or five problem sets he assigned us. Probably no other professor could have gotten away with not giving a final exam.
Okay, so this last page isn't class notes, it's a note I made from Weinberg's advanced textbook, The Quantum Theory of Fields, Vol I, published in 1995.
