the greatest precision. surrounded. Internally the battery would be divided into a ing structures which were formerly impossible, and at the The advantages claimed are: great floating capacity, and series of water-tight compartments by vertical bulkheads, same time the requirements of modern naval… … of expense to the country in ese bulkheads would join in the center. This method gives forts and other permanent defences, at the same time that greater protection would be afforded to inland towns on tidal g from partial but otherwise serious in- rivers and to harbors, as owing to their light…
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