The annual Smith College Bulb Show at the Lyman Conservatory will begin with a free lecture by Lynden B. Miller (Smith '60) in the Carroll Room at the Campus Center at 7:30 pm on Friday, March 5.  Miller is a noted public garden designer and will be talking about her new book Parks, Plants and People: Beautifying the Urban Landscape.  She feels that "beautiful parks and gardens are essential urban oases with economic benefits and the power to…