CREATE TABLE table_15166 ("Representative" TEXT, "Title" TEXT, "Presentation of Credentials" TEXT, "Termination of Mission" TEXT, "Appointed by" TEXT)

Which Presentation of Credentials is listed for the Appointed by Benjamin Harrison?
SELECT "Presentation of Credentials" FROM table_15166 WHERE "Appointed by" = 'benjamin harrison'
SELECT "Presentation of Credentials" FROM "table_15166" WHERE "Appointed by" = 'benjamin harrison'