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 so long as it blows, keeps the house as cool as can be desired. The following experiments will show the value of the tatty in upper India, in the month of May; during the regular north-west wind at noon, the thermometer,placed on the ground in the sun, stood at 120°; in the shade of a verandah, 104° in centre of house, 83°, in an earthen jar of water adjoining tatty, 68°, in a deep well, 78°.

Nothing can exceed the delightful coolness of this most refreshing breeze, and, did the wind continue steady all night, the hot winds would be little complained of; but the wind generally lulls at night, and the tatty does no good, though the thermantidote does. Besides, there are frequent alternations of an easterly wind, which have no cooling effects on the tatty, and only fill the house with steam. The climate of Bengal is too moist to admit of any benefit being got from the tatty; and, even in the Upper provinces, all tatties are discontinued as soon as the rains begin. Some discretion and self-denial are necessary in the use of a tatty. Strangers, tempted by the enjoyment, are apt to sit too near them, and subject themselves to colds, cramps, and rheumatism. The safest plan is to sit in the middle of a room, adjoining that of the tatty.

Tatties are now supplied in all European Hospitals and barracks.