The Stones Tour: If these old walls could talk

"For the first 20 years, I took care of the fossils," she says, "and that's sort of how I really got into trying to figure out the life of the past." Ingrid Birker, the Redpath's science outreach co-ordinator, has given this one-hour tour several times a year since 2002, shortly after the publication of What Building Stones Tell, Redpath's guidebook to "the fossils, rocks and minerals of Montreal buildings." The next tour is Oct. 5, and will take participants to some of the 14 locations in the publication.