"Could you direct us to the offices of the Sanitary Commission?" asked Ailsa of a passing soldier wearing the insignia of the hospital service on his sleeve. "You bet I can, ladies! Are you nurses?" "Yes," said Ailsa, smiling. "Bully for you," said the boy; "step right this way, Sanitary. One moment----" He planted himself before a bawling negro hack driver and began to apply injurious observations to him, followed by terrible threats if he didn't take these "Sanitary Ladies" to the headquarters of the Commission. "I'm going up that way, too," he ended, "and I'm going to sit on the box with you, and I'll punch your nose off if you charge my Sanitary Ladies more than fifty cents!" And escorted in this amazing manner, cinder-smeared, hot, rumpled, and very tired, Ailsa Paige and Letty Lynden entered the unspeakably dirty streets of the Capital of their country and turned into the magnificent squalor of Pennsylvania Avenue which lay, flanked by ignoble architecture, straight and wide and hazy under its drifting golden dust from the great unfinished dome of the Capitol to the Corinthian colonnade of the Treasury. Their negro drove slowly; their self-constituted escort, legs crossed, cap over one impish eye, lolled on the box, enjoying the drive. Past them sped a company of cavalry in blue and yellow, bouncing considerably in their saddles, red faces very dusty under their tightly strapped caps, sabres and canteens jangling like an unexpected avalanche of tin-ware in a demoralised pantry. "Go it, young 'uns!" cried their soldier escort from the box, waving his hand patronisingly. He also saluted an officer in spectacles as "Bully boy with a glass eye," and later informed another officer in a broad yellow sash that he was "the cheese." All of which painfully mortified the two young nurses of Sainte Ursula, especially when passing the fashionably-dressed throng gathered in front of the Willard and promenading Lafayette Square. "Oh, dear," said Ailsa, "I suppose he's only a boy, but I didn't know soldiers were permitted to be so impudent. What on earth do all these people think of us?" Letty, who had been mischievously amused and inclined to enjoy it, looked very grave as the boy, after a particularly outrageous jibe at a highly respectable old gentleman, turned and deliberately winked at his "Sanitary Ladies." "That's old hoss Cameron," he said. "I made such a mug at the old terrapin that he'll never be able to recognise my face." "The--the Secretary of War!" gasped Ailsa. "You very wicked little boy, don't you dare to make another face at anybody!--or I'll--I'll report your conduct to--to the Sanitary Commission!" "Oh, come!" he said blankly, "don't do that, lady! They'll raise hell with me, if you do. I want to get hunky with the Sanitary boss." "Then behave yourself!" said Ailsa, furious; "and don't you dare to swear again. Do you hear?"