< Page:Popular Science Monthly Volume 92.djvu
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Underwater Railways
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��a manner suggestln^g ti?e^ evol^^tfon^l oTl ^p^p^o^^
��Davidson's idea is a cylindrical car running on a
IvorsThe niu'.l n^ " "\^'^' ^^"^ GunSorfe? f^r^ the Illusion of a submarine of conventional form which has convenient observation So^
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