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195 pages, Mass Market Paperback
First published January 1, 1928
”Nevertheless,” I prophesized, “the Finger of Doom points squarely at them today, and unless you and I are killed in the struggle, we shall live to see America blast the Yellow Blight from the face of the Earth.”
It may be of interest at this point to give the reader a layman’s explanation of the electronic or ionic machinery of these ships, and of their general construction. The reader who is not interested in technical details can skip this chapter.