"Thank you, sor. It's no liss than oi expicted from a koindly and considerate gintleman loike th' Captain. Oi hope you'll overlook a mother's anxiety and worrimint over her only b'y. It's not mesilf would be interfarin' with the commanding officer's duties, but oi knowed that you niver mint for Reddy and Teddy to be rowin' that bit of a skift, whin it belonged to the min at the hay-camp to do the same. Good-day, sor, and many thanks for your kindness, Captain." And with much ceremonious leave-taking the laundress backed out of the office and hurried back to her tubs.

"Mr. Dayton," said the commanding officer, "write Corporal Duffey to hereafter allow no person not a member of his party to row the mail-boat across the river, unless he brings authority from this office."

"Yes, sir."

The letter had been written and sealed when Teddy returned, having changed the full-dress coat and helmet of guard-mounting for a blouse, forage-cap, and leather leggings. Nearly an hour before his drum had rattled an exhilarating accompaniment to the fife, as the guard of twelve privates and three non-commissioned officers marched in review and turned off to the guard-house. Now he stood at the door with spurred heels and gauntleted hands, ready to receive the mail-pouch and ride his little zebra-marked mule to the crossing, two miles from the fort.

The Sergeant-Major handed him the pouch and the letter addressed to the corporal, with this injunction:

"You are to deliver this letter to Corporal Duffey at the hay-camp, and he will give you some instructions which you are to carefully obey."

Slinging the pouch over his shoulder, and tucking the letter under his waist-belt, the boy went to his mule behind the office, mounted, and rode away. Passing the quarter-master's corral, another boy, similarly attired, and mounted on a piebald mustang, dashed out with a whoop, and the two went cantering down the slope to the meadow below.

Arriving side by side at a soapweed which marked the southern limit of the river-bottom, the boys put their beasts to the height of their speed, and rode for a dead cottonwood which raised its bleached and barkless branches beside the road three hundred yards beyond.

This stretch was raced over every mail-day, with varying victory for horse and mule. To-day the mule reached the tree half a length ahead, and Teddy was consequently in high glee.

"Ah, Reddy, my boy!" he shouted. "Eight times to your six! Better swap that pony for a mule, if you want to stand any chance with Puss!"