The questions you ask are frequently asked by professional immunologists.
Regarding the MHC and self/not-self, you will probably find an entry into
the literature in Scientific American 1991 or 1992. Thereafter, review
journals, such as Advances in Immunology, will take you further.
Regarding olfaction and MHC, see Chemical Senses Volume 3, Pub. M. Dekker
1991. Eds. C.J.Wysocki and M.R. Kare. Expecially an article by Roser, Brown
and Singh, entitled "Excretion of Transplantation Antigens as Signals of
Genetic Individuality". pp. 187-209.
D.R.Forsdyke Discussion Leader.
