Only, she could be of little if any more use to me, standing upon the beach there in the red sash of her office, and hoisting at the first gust of wind the flag which forbade us to bathe (for these superintendents are prudent men, and seldom know how to swim) than she would have been in that fresco of the Life of Moses in which Swann had long ago identified her in the portrait of Jethro's Daughter.