Film transparency of what appear to be bones and a log, January 15, 1963. The log is being burned to start a fire "to see what, if any, soil changes, e.g. coloring" as a result.
Film transparency of what appear to be bones and a log, January 15, 1963. The log is being burned to start a fire "to see what, if any, soil changes, e.g. coloring" as a result.