Annals and Antiquities of Rajasthan, or the Central and Western Rajput States of India v2.c27.s7.t5.37

v2.c27.s7.t5.37

I had long imagined that the nature of the soil had some effect in producing this illusory phenomenon; especially as the *chitram* of the desert is seen chiefly on those extensive plains productive of the *sajji*, or alkaline plant, whence by incineration the natives produce soda,¹ and whose base is now known to be metallic. But I have since observed it on every kind of soil. That these lands, covered with saline incrustations, tend to increase the effect of the illusion, may be concluded.² But the difference between the *sarāb* or *chitram*, and the *siya-kot* or *disasul* is, that the latter is never visible but in the cold season, when the gross vapours cannot rise; and that the rarefaction, which gives existence to the other, destroys this, whenever the sun has attained 20° of elevation. A high wind is alike adverse to the phenomenon, and it will mostly be observed that it covets shelter, and its general appearance is a long line which is sure to be sustained by some height, such as a grove or village, as if it required support. The first time I observed it was in the Jaipur country; none of the party had ever witnessed it in the British provinces. It appeared like an immense walled town with bastions, nor could we give credit to our guides, when they talked of the *siya-kot*, and assured us that the objects were merely “castles in the air.” I have since seen, though but once, this panoramic scene in motion, and nothing can be imagined more beautiful.