Tyndall, John, 1820-1893 · New York, D. Appleton · leaf 32
e into thelecture-room an effect which occurs at the base of everywaterfall. There are friends before me who have stoodamid the foam of Niagara, and I have done so myself.Had we dipped sufficiently sensitive thermometers into thewater at the top and at the bottom of the cataract, weshould have… … 1 I say theoretically correct, because it would require far more care»nd instrumental delicacy than appear to have been invoked, to prove thatthe observed differences of temperature between sea and air •were duesolely to mechanical action. Nevertheless the tradition is an old one, asthe following…
Heat
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