On this general subject, I respectfully refer Mr. Browne to the Secretaries of War and Navy for conferrence and consultation.
I have a single idea of my own about harbor defences It is a Steam ram, built so as to sacrifice nearly all capacity for carrying, to those of speed and strength, so as to be able to split any vessel having hollow enough in her to carry supplies for a voyage of any distance. Such ram, of course could not her self carry supplies for a voyage of considerable distance; and her business would be to guard a particular harbour, as a Bull-dog guards his master's door.
April 4, 1863. A. LINCOLN