In 1886 F. A. Cloudman of Rondout, New York proposed building these structures 500 miles apart across the ocean that would link an underwater communications cable from North America to Europe. These “floating” lighthouses would be anchored to the oceans floor. He also suggested that these structures could replace lightships. This 15 page booklet is very fragile and frail and will need proper protection from deterioration. Sold as-is.