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https://explore.chicagocollections.org/records/?f2-topics=Natural+%26+Built+Environments%3A%3ARailways&f1-institutions=Chicago+Academy+of+Sciences+%2F+Peggy+Notebaert+Nature+Museum&sort=title&f3-topics=Work::Science&f4-topics=Natural%20%26%20Built%20Environments::Railways