A lot of the prestige of Pre-Med and Pre-Dental at TCU in the 60's was due to William Hewatt in Biology. He was chairman of Pre-Med/Dental Committee for a while and taught another Soph weed out course: Comparative Anatomy. He took those responsibilities very, very seriously. He was the only prof at TCU who I found truly intimating. Those who took Comp. Anatomy under him know what I mean.
He weeded me out from Pre-Dental when I figured out that I had the digital dexterity of a seal. I would have been a disaster as a dentist. My lack of coordination hurt me a lot in Chemistry grad school because I was awful at the slide rule. One rich guy in grad school (Viet Nam Vet receiving both veterans school stipend and his fellowship, plus wife was president of Texas Chemical Engineers) had an HP-45 which made courses with lots of calculations a cinch. When I got out of school (with just an M.S., sigh), as soon as I could afford it, I got an HP calculator. It used RPN and when people in the lab borrowed it, they asked: "Where is the equals sign?". Heh, Heh.