In contrast to his yawning shoes and a pair of trousers the original shade of which was a matter of uncertainty, together with a black satine shirt whose color made change unnecessary, was a stylish Tyrolese hat--green felt--with a butterfly bow perched jauntily on one side. And underneath this stylishness there was a prematurely bald head covered with smudges of machine grease which it could readily be believed were souvenirs of his apprentice days in the machine shop. If indifference to appearance be a mark of genius it would be impossible to deny Banule's claim to the title. He was the direct antithesis of Jennings, harnessed lightning in clothes, working early and late. He flew at the machinery like a madman, yelling for wrenches, and rivets and bolts, chiselling, and soldering, and oiling, until the fly-wheel was on its shaft in the power-house, and the dynamos, dragged at top speed from the river-bank, no longer looked like a pile of junk. The switchboard went up, and the pressure gauge, and the wiring for the power-house light. But for all Bruce's relief at seeing things moving, he had a feeling of uneasiness lest there was too much haste. "Good enough--that's good enough!" were the words oftenest on Banule's lips. They filled Bruce with vague forebodings, misgivings, and he came to feel a flash of irritation each time the genius said airily: "Oh, that's good enough." Bruce warned him often--"Don't slight your work--do it right if it takes twice as long." Banule always made the same cheering answer: "Don't worry, everything is going fine; in less than a month we'll be generating 'juice'." And Bruce tried to find comfort in the assurance. When Bruce pulled the lever which opened the valve, and heard the hiss of the water when it shot from the nozzle and hit the wheel, and watched the belt, and shaft, and big fly-wheel speed up until the spokes were a blur and the breeze it created lifted his hair, it was the happiest moment of his life. When he saw the thread of carbon filament in the glass bulb turn red and grow to a bright, white light, he had something of the feeling of ecstasy that he imagined a mother must have when she looks at her first-born--a mixture of wonder and joy. He had an odd, intimate feeling--a strong feeling of affection--for every piece of machinery in the power-house. He liked to hear the squeak of the belting and the steady chug-chug of the water-wheels; the purr of the dynamos was music, and he kept the commutators free from dust with loving care. But these moments alone in the power-house were high-lights in a world of shadows. His periods of elation were brief, for so many things went wrong, and so often, that sometimes he wondered if it was the way some guardian angel had of warning him, of trying to prevent him from keeping on and making a big mistake bigger; or was it only the tests that the Fates have a way of putting humans through and, failing to break their hearts, sometimes let them win?