of the future; still a bachelor, and with a perfect intuitive faith that Georgina also was waiting. In this faith Dalton was not deceived. Wondering perhaps why no message ever came, Georgina found no romance save in her dreams and expectations; and in the course of time became busy with the new responsibilities brought by her brother's rise to greatness. Alfred's growth had not belied the promise of his youth, and the slim boy had darted quietly up the steps of science with a speed and permanence almost dizzying to contemplate. Lean and ascetic, with steel-rimmed pince-nez and pointed brown beard, Dr. Alfred Clarendon was an authority at twenty-five and an international figure at thirty. Careless of worldly affairs with the negligence of genius, he depended vastly on the care and management of his sister, and was secretly thankful that her memories of James had kept her from other and more tangible alliances. Georgina conducted the business and household of the great bacteriologist, and was proud of his strides toward the conquest of fever. She bore patiently with his eccentricities, calmed his occasional bursts of fanaticism, and healed those breaches with his friends which now and then resulted from his unconcealed scorn of anything less than a single-minded devotion to pure truth and its progress. Clarendon was undeniably irritating at times to ordinary folk; for he never tired of depreciating the service of the individual as contrasted with the service of mankind as a whole, and in censuring men of learning who mingled domestic life or outside interests with their pursuit of abstract science. His enemies called him a bore; but his admirers, pausing before the white heat of ecstasy into which he would work himself, became almost ashamed of ever having had any standards or aspirations outside the one divine sphere of unalloyed knowledge.The doctor's travels were extensive and Georgina generally accompanied him on the shorter ones. Three times, however, he had taken long, lone jaunts to strange and distant places in his studies of exotic fevers and half-fabulous plagues; for he knew that it is out of the unknown lands of cryptic and immemorial Asia that most of the earth's diseases spring. On each of these occasions he had brought back curious mementoes which added to the eccentricity of his home, not least among which was the needlessly large staff of eight Tibetan servants picked up somewhere in U-tsang during an epidemic of which the world never heard, but amidst which Clarendon had discovered and isolated the germ of black fever. These men, taller than most Tibetans and clearly belonging to a stock but little investigated in the outside world,