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Thomas Leslie

Author: Heather Sauer | Image: Heather Sauer

Thomas Leslie, Morrill Professor of architecture, and Don Friedman, principal of Old Structures Engineering in New York City, will present a webinar on “Masonry to Steel, 1870s–1890s: How and When Masonry Systems Transitioned to Steel” at 6 p.m. Tuesday, Sept. 29, and 6 p.m. Wednesday, Sept. 30. The webinar is part of The Skyscraper Museum’s free online course, “Rewriting Skyscraper History: Looking Back from the 21st Century.” RSVP online.