Von Ruyter's Explosive Gun
Storyline: Von Ruyter has invented a new form of high explosive gun. Tests for the War Department are spectacular, and they ask permission to install a battery of guns in one of their Pacific possessions. The plans are stolen, however, and his friend Cosmo goes off to investigate, finally uncovering the Russian Countess De Mornay. She gets away with false plans Cosmo has planted. The diagram shows the monkey cage in the Bronx Zoo, and the formula is that for castor oil.
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