ScientificAmerican1915-01-16.jpg Scientific American 1903-10-17ThumbnailsScientific American 1918-04-27Scientific American 1903-10-17ThumbnailsScientific American 1918-04-27Scientific American 1903-10-17ThumbnailsScientific American 1918-04-27Scientific American 1903-10-17ThumbnailsScientific American 1918-04-27Scientific American 1903-10-17ThumbnailsScientific American 1918-04-27
Diver leaving a submarine to plant a mine.