Annals and Antiquities of Rajasthan, or the Central and Western Rajput States of India v1.c16.s2.47

v1.c16.s2.47

Such phenomena are common to the desert, more particularly where these extensive saline depositions exist, but varying from certain causes. In most cases, this powerfully magnifying and reflecting medium is a vertical stratum; at first dense and opaque, it gradually attenuates with increased temperature, till the maximum of heat, which it can no longer resist, drives it off in an ethereal vapour. This optical deception, well known to the Rajputs, is called sikot, or ‘winter castles,’ because chiefly visible in the cold season: hence, possibly, originated the equally illusory and delightful ‘Chateau en Espagne,’ so well known in the west.³