Soon the pulses of both began to beat more heavily.

Tom took in great breaths of the life-giving air, but Alf was soon panting.
"Let's stop, now," proposed Tom, in a kindly voice.

"After you've rested a couple of minutes I'm going to show you how to breathe right and fill your lungs with air." Soon they were trying this most sensible "stunt." Alf, however, didn't succeed very well.

Whenever he tried hard it set him to coughing.
"You see, it's mostly due to the cigarettes," said Tom gravely.
"Alf, you've simply got to turn over a new leaf.

You're headed just right to have consumption." "Cigarettes don't give a fellow consumption!" retorted the younger boy sullenly.
"I don't believe they do," Tom admitted, thoughtfully.