This is a nice 1849 map of the states of Massachusetts and Rhode Island by legendary American map publisher Samuel Augustus Mitchell. It covers the two states in entirety from Berkshire to Nantucket, Buzzard Bay, Martha's Vineyard, and Cape Cod. A detailed Boston City plan showing the city before the Back Bay landfill is included in the lower left quadrant. . The whole is engraved and colored in Mitchell's distinctive style with green border work and vivid pastels. Political and topographical features are noted and color coded with elevation rendered by hachure. Mitchell published this chart in his atlas from 1846 to the late 1850s before discontinuing the series and selling his map plates to DeSilver. This map was issued in the 1849 edition of the New Universal Atlas. It was the last edition of that atlas to be published by Mitchell prior to selling the plates and rights to the atlas to Thomas Cowperthwait in 1850.