AN EXCURSION DOWN THE RIVER—LONG PAHANGEI—THE OMA-SULINGS—THE GREAT TRIENNIAL FESTIVAL—HOSPITABLE NATIVES—INCIDENTS IN PHOTOGRAPHYDAYAK DOGS—A FUNERAL ON THE MAHAKAM—OUR RETURN JOURNEY—AGAIN AT LONG TJEHAN—IN SEARCH OF A UNIQUE ORCHID—A BURIAL CAVECHAPTER XXII