The Isoko country in the north-western corner of the Niger Delta, Southern Nigeria, is a virgin field for anthropologists. Beyond one or two brief and usually inaccurate references in accounts of the Delta, and a Government Intelligence Report, nothing has been collected about or written upon the Isoko people. The following notes were collected by me during a first tour of eighteen months, purely out of personal interest and curiosity, and in my spare time, without any previous training in anthropology.