Sanjit Sethi, artist and co-director of the Center for Art and Public Life at California College of the Arts, gives a seven-and-a-half-part talk on Augustus William Ericson’s Slab of Redwood for a London Dining Table Designed to Seat Forty Guests—Diameter 15 Feet (1893). He narrates the history of this dismembered tree and his response to the photograph documenting it: “It seems like a gory image from some type of B-grade horror film on trees.”