THE SECRET WIRELESS. A Story of the Camp Brady Patrol. 320 pages.
THE HIDDEN AERIAL. The Spy Line on the Mountain. 332 pages.
THE YOUNG WIRELESS OPERATOR—AFLOAT. How Roy Mercer Won His Spurs in the Merchant Marine. 320 pages.
THE YOUNG WIRELESS OPERATOR—AS A FIRE PATROL. The Story of a Young Wireless Amateur Who Made Good as a Fire Patrol. 352 pages.
THE YOUNG WIRELESS OPERATOR—WITH THE OYSTER FLEET. How Alec Cunningham Won His Way to the Top in the Oyster Business. 328 pages.
Cloth Bound—Illustrated by Colored Plates and Photographs
A U. S. Coast Guard Cutter Surrounded by Icebergs
The Wireless Operator—With the U. S. Coast Guard
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