This article provides case descriptions & data on 35 suicides in various Iroquis tribes. It examines attitudes & public opinion regarding suicide, beliefs on the destiny of souls, comparative frequency, causes & methods of suicide, & extent to which cultural norms have been preserved during 300 years (1635 to 1939) of contact with European cultures. It notes that an ambivalent Huron-Iroquois attitude toward suicide as a value cyrstallized into open hostility under Christian teaching. (51 Refs.)