ter the building.

"Cracky, it's the best make on the market, too," said Nipper Knapp,
examining the maker's name plate.

"Bet it will burn up the beach, eh, fellows?" said Romper.

"It sure will. It's a two-cylinder tandem. It'll make fifty miles an
hour, or I'm no judge," said Bruce enthusiastically.

"Like it, boys?" queried Mr. Herrick, who had been watching them as they
inspected the apparatus.

"Like it! Gee, we couldn't help but like it. It's a corker. But what's
that side car paraphernalia, that long box and the cigar-shaped tin can
and the reel with wire cable on it, and all that?"

"I'll explain that to you right away," said Mr. Herrick. "That long,
flat-topped box on the side car serves several purposes. When you want
to take an unconscious person to the emergency hospital over on Beach
Avenue you can use the box as a stretcher. Just put your patient on to
the top of it and while the man on the tandem seat holds him fast the
driver can rush the machine off to its destination at top speed; regular
mile-a-minute ambulance service, you see.

"Under that flat top are a lot of interesting things. The box contains
several compartments in which are all sorts of first-aid preparations,
including bandages, medicines, aromatic stimulants and the like. And,
last of all, there is a pulmotor."

"Oh, I've heard of the pulmotor and always wanted to see one in use,"
said Bud.

"Well, I'll tell you how they work," said Mr. Herrick. "It is the latest
thing in the way of first-aid appliances. It pumps oxygen into the lungs
of an unconscious person automatically. Firemen and life savers all over
the world are using them now. That blue tank there contained oxygen.
This machinery under the glass covering is a pump that works by the
pressure of the oxygen. A little of the oxygen escapes from the tank and
moves the pump, which forces the life-giving gas into those long pipes.
That muzzle at the end of the pipes is placed over the victim's mouth and
nose, and in that way the oxygen enters the lungs. You boys can study
the directions for its use on the cover of the box here. When you have a
pulmotor around you won't have to resort to the artificial respiration
drill described in your Handbook. Try it out on each other until you
know exactly how to handle it."

"You bet we will. We'll work out a regular rescue exercise, won't we,
fellows?" said Bruce.

"Right-o!" exclaimed half a dozen lads in unison.