But that fatal spirit of unrest from which I thought to escape, and which ruled my life for so many years, sometimes asserts its power, and at those times my thoughts turn back to the days when we were all Lieutenants together, marching across the deserts and mountains of Arizona; back to my friends of the Eighth Infantry, that historic regiment, whose officers and men fought before the walls of Chapultepec and Mexico, back to my friends of the Sixth Cavalry, to the days at Camp MacDowell, where we slept under the stars, and watched the sun rise from behind the Four Peaks of the MacDowell Mountains: where we rode the big cavalry horses over the sands of the Maricopa desert, swung in our hammocks under the ramadas; swam in the red waters of the Verde River, ate canned peaches, pink butter and commissary hams, listened for the scratching of the centipedes as they scampered around the edges of our canvas-covered floors, found scorpions in our slippers, and rattlesnakes under our beds. The old post is long since abandoned, but the Four Peaks still stand, wrapped in their black shadows by night, and their purple colors by day, waiting for the passing of the Apache and the coming of the white man, who shall dig his canals in those arid plains, and build his cities upon the ruins of the ancient Aztec dwellings. The Sixth Cavalry, as well as the Eighth Infantry, has seen many vicissitudes since those days. Some of our gallant Captains and Lieutenants have won their stars, others have been slain in battle. Dear, gentle Major Worth received wounds in the Cuban campaign, which caused his death, but he wore his stars before he obeyed the "last call." The gay young officers of Angel Island days hold dignified commands in the Philippines, Cuba, and Alaska. ***** My early experiences were unusually rough. None of us seek such experiences, but possibly they bring with them a sort of recompense, in that simple comforts afterwards seem, by contrast, to be the greatest luxuries. I am glad to have known the army: the soldiers, the line, and the Staff; it is good to think of honor and chivalry, obedience to duty and the pride of arms; to have lived amongst men whose motives were unselfish and whose aims were high; amongst men who served an ideal; who stood ready, at the call of their country, to give their lives for a Government which is, to them, the best in the world. Sometimes I hear the still voices of the Desert: they seem to be calling me through the echoes of the Past. I hear, in fancy, the wheels of the ambulance crunching the small broken stones of the malapais, or grating swiftly over the gravel of the smooth white roads of the river-bottoms. I hear the rattle of the ivory rings on the harness of the six-mule team; I see the soldiers marching on ahead; I see my white tent, so inviting after a long day's journey.