I'm replying off the list, because I want to pass along a
          phone #. A woman named Catherine Eberbach, here at the New
          York Botanical Garden, did a session at the recent American
          Association of Botanical Gardens and Arboreta conference on
          Discovery Carts. She has done them for the past five years
          here at the Garden, and has been pretty successful at a
          low-tech, low maintenance, and relatively low-cost approach.
 
          You can contact her at 718-817-8790. She can sent you the
          outline of her talk, which goes into design, programming,
          staffing, and budget in some detail.
 
          Or snail mail her at NYBG 200th Street and Southern Blvd,
          Bronx, NY 10458.
 
 
          Eric Siegel, NYBG