SCHEMA:
CREATE TABLE table_name_15 (appointed_by VARCHAR, title VARCHAR, termination_of_mission VARCHAR)
USER:
Who was appointed with the title of envoy extraordinary and minister plenipotentiary, and a termination of mission of march 16, 1905?

QUERY:
SELECT appointed_by FROM table_name_15 WHERE title = "envoy extraordinary and minister plenipotentiary" AND termination_of_mission = "march 16, 1905"