U. S. IRONCLAD STEAMSHIP _ROANOKE_. (From an old lithograph), 15 U. S. FRIGATE _PENSACOLA_ OFF ALEXANDRIA. (From a photograph taken in 1865), 16 A TWELVE-POUND BRONZE HOWITZER--THE FIRST ONE MADE IN THE UNITED STATES. (From a photograph of the original at the Brooklyn Navy Yard), 18 A DAHLGREN GUN, 19 TWO BLAKELY GUNS AT THE BROOKLYN NAVY YARD, 22 THE BLOCKADED COAST. (From “The Navy in the Civil War”), 29 MAP SHOWING POSITION OF UNITED STATES SHIPS OF WAR IN COMMISSION MARCH 4, 1861, 33 GIDEON WELLES. (From a photograph), 34 GUSTAVUS V. FOX. (From an engraving), 36 GARRETT J. PENDERGRAST, 39 A FOUR-POUND CAST-IRON GUN CAPTURED FROM A BLOCKADE-RUNNER, 49 AN EIGHTEEN-POUND RIFLE CAPTURED FROM A BLOCKADE-RUNNER, 52 A SIX-POUND GUN CAPTURED FROM A BLOCKADE-RUNNER, 53 A NASSAU VIEW--ALONG THE SHORE EAST OF THE TOWN. (From a photograph by Rau), 54 NASSAU SCHOONERS. (From a photograph by Rau), 55 THE BLOCKADE-RUNNER _TEASER_. (From a photograph made in 1864), 60 WASHINGTON, D. C., AND ITS VICINITY, 67 HIRAM PAULDING. (From an engraving by Hall), 71 A VIEW OF THE NORFOLK NAVY YARD. (From a photograph by Cook), 73 THE OLD _NEW HAMPSHIRE_ AT THE NORFOLK NAVY YARD. (From a photograph by Cook), 77 BURNING OF THE VESSELS AT THE NORFOLK NAVY YARD, 79 THE CONFEDERATE STATES PRIVATEER _SAVANNAH_, LETTER OF MARQUE NO. 1, CAPTURED OFF CHARLESTON BY THE U. S. BRIG _PERRY_, LIEUTENANT PARROTT, 88 DESTRUCTION OF THE PRIVATEER _PETREL_ BY THE _ST. LAWRENCE_. (From an engraving by Hinshelwood of the painting by Manzoni), 95 S. H. STRINGHAM. (From an engraving by Buttre), 100 B. F. BUTLER. (From a photograph), 101 BOMBARDMENT AND CAPTURE OF THE FORTS AT HATTERAS INLET, N. C. (From a lithograph published by Currier & Ives), 103 EIGHT-INCH MORTAR CAPTURED AT HATTERAS, 107 L. M. GOLDSBOROUGH. (From an engraving by Buttre), 108