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As a young man, Robert Lincoln became interested in mathematical computations and science, resulting in his interest in astronomy. Soon after arriving at Hildene, he surveyed and selected a high point of land for his observatory. Within 80 yards, northeast of the house, it offered a clear and unobstructed celestial view. The dome was constructed on a concrete base, fourteen feet in diameter and six inches thick. The original canvas covered wood dome was constructed by the Eagle Square Company in nearby Shaftsbury, VT. The cost in June of 1908 was $182.16.
See Also
Hartness House Trip