: any of a various gram-negative, parasitic bacteria (order Rickettsiales and especially genus Rickettsia) that are transmitted by biting arthropods (such as lice or ticks) and cause a number of serious diseases (such as Rocky Mountain spotted fever and typhus ) âRickettsia are often pleomorphic, and may be coccoid, rod-shaped, or irregularly-shaped ...
Massachusetts Routes: US Highways and State Routes include: Route 1, Route 3, Route 6, Route 7, Route 20, Route 44 and Route 202. Copyright information: The maps on this page were composed by Brad Cole of Geology.com. If you want to share these maps with others please link to this page. These maps are property of Geology.com and may not be used beyond our websites. They were created using data licensed from and copyright by Map Resources.
Newburyport/Rockport Line. The Newburyport/Rockport Line is a branch of the MBTA Commuter Rail system, running northeast from downtown Boston, Massachusetts towards Cape Ann and the Merrimack Valley, serving the North Shore. The first leg serves Chelsea, Lynn, Swampscott, Salem, and Beverly.