door and down the steps of his house to the street.

Minnie, hearing the door slam violently, ran in alarm to the window. Down
the street a slender man was getting into a cab. The Bacteriologist,
hatless, and in his carpet slippers, was running and gesticulating wildly
towards this group. One slipper came off, but he did not wait for it. "He
has gone _mad_!" said Minnie; "it's that horrid science of his"; and,
opening the window, would have called after him. The slender man, suddenly
glancing round, seemed struck with the same idea of mental disorder. He
pointed hastily to the Bacteriologist, said something to the cabman, the
apron of the cab slammed, the whip swished, the horse's feet clattered,
and in a moment cab and Bacteriologist hotly in pursuit, had receded up
the vista of the roadway and disappeared round the corner.

Minnie remained straining out of the window for a minute. Then she drew
her head back into the room again. She was dumbfounded. "Of course he is
eccentric," she meditated. "But running about London--in the height of the
season, too--in his socks!" A happy thought struck her. She hastily put
her bonnet on, seized his shoes, went into the hall, took down his hat and
light overcoat from the pegs, emerged upon the doorstep, and hailed a cab
that opportunely crawled by. "Drive me up the road and round Havelock
Crescent, and see if we can find a gentleman running about in a velveteen
coat and no hat."

"Velveteen coat, ma'am, and no 'at. Very good, ma'am." And the cabman
whipped up at once in the most matter-of-fact way, as if he drove to this
address every day in his life.

Some few minutes later the little group of cabmen and loafers that
collects round the cabman's shelter at Haverstock Hill were startled by