Published online by Cambridge University Press: 27 October 2009
A method has been developed for deducing the variation with height of the atmospheric temperature, using the observed form of a mirage as the input. This method is applicable to the class of mirages in which the object appears undistorted, although magnified, vertically displaced, and quite possibly inverted: here applied to an observation of this class of mirage made by Dr William Scoresby in 1822, it is used to deduce the nature of the temperature inversion prevailing on that occasion.