Greetings- An early work of mine while struggling to overcome the tyranny of suburbia in Laurel Maryland "Human Adaptation to the Fall Line Setting" Is now available for free and downloadable PDF on Google books It does contain a good set of historical maps for te Laurel, Prince Georges County, Maryland area. And a few crazy ideas perhaps- generally a background research reference..... http://books.google.com/books?id=oMlmuRf9vgsC&printsec=frontcover&dq=bladey&ei=eY8bTZTIKY_uUOfivLwF&cd=1#v=onepage&q&f=false Conrad