BY E. M. DOUGLAS M. AM. SOC. C. E. Vertical Dial Facing S. W. Bowdoin College Brunswick Me. An Elaborately Designed Public Sun Dial. Sun Dial in Zoological Park, scientific american, 1908-06-13

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BY E. M. DOUGLAS M. AM. SOC. C. E. Vertical Dial Facing S. W. Bowdoin College Brunswick Me. An Elaborately Designed Public Sun Dial. Sun Dial in Zoological Park, scientific american, 1908-06-13

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