The Summer Institute on High Energy Physics was the second of this kind
organized at Louvain. Four years ago we had already decided to organize
a Summer Institute. The first one was con- ceived in 1970, at Kiev, by
D. Speiser, J. Weyers, and G. Zweig, and thanks to a NATO grant took
place from August 20th to Septem- ber 15th 1971, at Louvain in the Groot
Begijnhof. All lectures were directed toward one subject: duality. The
lecturers were R. Brout (ULB - Bruxelles), D. Fairlie (University of
Durham), F. Gilman (SLAC - Stanford), D. Horn (University of Tel Aviv),
J. Mandula (Caltech - Pasadena), C. Michael (CERN - Geneva), J. Rosner
(University of Minnesota), C. Schmidt (CERN - Geneva), J. Veneziano (The
Weizmann Institute), J. Weyers (UCL - Louvain and CERN - Geneva), and G.
Zweig (Caltech - Pasadena). The direc- tion was in the hands of F.
Cerulus (KUL - Louvain), R. Rodenberg (Technische Hochschule, Aachen),
D. Speiser (UCL - Louvain), and J. Weyers (CERN - Geneva). Unfortunately
it was not possible to publish the lecture notes for that Institute. The
second Summer Institute on Elementary Particle Physics took place from
August 12th to August 25th 1973, again in Louvain. It was initiated in
Chicago, in 1972, by F. Halzen (University of Wisconsin) and J. Weyers
(UCL - Louvain and CERN - Geneva). Lecturers included R. Carlitz
(University of Chicago), F. Gilman (SLAC - Stanford), F. Halzen
(University of Wisconsin), D.