"Walden's (Thoreau's) Natural Philosophy" as presented by SRJC English Instructor Ed Castellini on November 13, 2019 in Newman Auditorium at Santa Rosa Junior College. This lecture is part of the WOLM (Work of Literary Merit) series for the 2019/2020 selection "Walden" by Henry David Thoreau. Introducing presenter Ed Castellini is SRJC English Department instructor Terry Mulcaire.