...These losses left at the disposal of the Department 62 vessels, carrying 1,174 guns, all of which are now, or soon will be, in commission, with the exception of the-- Vermont, ship-of-the-line,84 Brandywine , frigate,50 Decatur, sloop, at San Francisco,16 John Hancock, steam-tender, at San Francisco,3 There have recently been added to the navy, by purchase, 12 steamers, carrying from 2 to 9 guns ...