Rumford, Benjamin, Graf von, 1753-1814, American Academy of Arts and Sciences · Boston · leaf 64
which are the subjects of the experi-ments. There is a movable stage or platform belong-ing to each of these carriages, which, by means whichwill presently be described, can be placed higher orlower. It is upon these platforms, and not on thebottoms of the carriages, that the lights are placed;and,… … of the Light emitted by Luminous Bodies. 45 three holes through it, in which three cylindrical pillarspass, which stand on the bottom of the carriage, andare firmly fixed in it. The platform is attached tothese three pillars at any height above the bottom ofthe carriage, by means of small…
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