The VIIIth International Congress of the International Primatological Society was held from 7 through 12 July 1980 in Florence, Italy, under the auspices of the host institution, the Istituto di Antropologia of the University of Florence. More than 300 papers and abstracts were pre- sented either at the main Congress or in 14 pre-Congress symposia the week earlier (so scheduled to avoid conflicting with either the main invited lectures or the contributed paper sessions). The texts of these main lectures, plus reports from the organizers on results of the pre-Congress symposia, form this...