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May26-05, 09:07 PM
PF Gold
P: 643
Various Google Search Results:

Physics Essay volume 10, number 1, 1997, "The A-B-C Preon Model" by D.J. Larson

"James N. Bellinger, author
Atoms are made of a nucleus and electrons; nuclei are made of protons and neutrons, and these are made of quarks and gluons. We can ask if the quarks (and electrons) are themselves made of something even smaller, which we usually call preons [pree-on]."

Wikipedia (mostly by yours truly):