"I've got to go to Silver City to-day myself," said Mr. Phipps. "Suppose you all pile in my hack and we'll drive over."

This was a welcome suggestion and the boys quickly accepted it.


CHAPTER XII

THE THUNDER BIRD ATTACKS

Thinking that experience was the best teacher, Hawke decided to discontinue lessons on aviation until the materials for the biplane arrived and they could begin actual work.

During the rest of the week, therefore, the boys, with the assistance of Captain Crawford, Dr. Rivers and the aviator, put in their time mastering some of the Boy Scout requirements.

They organized a bucket brigade, and, by several mock fire fights fitted themselves to take care of a blaze should one occur at any time.

"That's what we've been needing at this fort for a long time," remarked Captain Crawford, when he saw the young fire fighters practicing. "In case of a fire here we'd have to depend on the volunteer bunch at Silver City, and everything would be up in smoke before they could get here."

Dr. Rivers gave the young scouts a thorough drilling in first aid to the injured. In his laboratory, which was a large and heretofore mysterious room at the top of the house, he taught them many things which they did not know about the human body and its needs in case of accident—how to construct an emergency stretcher, prepare splints, roll and apply bandages, and stop the flow of blood from an artery by means of the tourniquet.