the black camel's-hair tents of the Arabs, enlivened with flocks of sheep and camels, and whole studs of horses of noble breed which are brought out from Mosul and left to graze at liberty, in the days of healthy breezes and fragrant pastures. 7. So much for spring. A beautiful, a perfect season, but unfortunately as brief as it is lovely, and too soon succeeded by the terrible heat and long drought of summer, which sometimes set in so suddenly as hardly to give the few villagers time to gather in their crops. Chaldea or Lower Mesopotamia is in this respect even worse off than the higher plains of Assyria. A temperature of 120 deg. in the shade is no unusual occurrence in Baghdad; true, it can be reduced to 100 deg. in the cellars of the houses by carefully excluding the faintest ray of light, and it is there that the inhabitants mostly spend their days in summer. The oppression is such that Europeans are entirely unmanned and unfitted for any kind of activity. "Camels sicken, and birds are so distressed by the high temperature, that they sit in the date-trees about Baghdad, with their mouths open, panting for fresh air."[D] 8. But the most frightful feature of a Mesopotamian summer is the frequent and violent sand-storms, during which travellers, in addition to all the dangers offered by snow-storms--being buried alive and losing their way--are exposed to that of suffocation not only from the furnace-like heat of the desert-wind, but from the impalpable sand, which is whirled and driven before it, and fills the eyes, mouth and nostrils of horse and rider. The three miles' ride from Layard's encampment to the mound of Nimrud must have been something more than pleasant morning exercise in such a season, and though the deep trenches and wells afforded a comparatively cool and delightful retreat, he soon found that fever was the price to be paid for the indulgence, and was repeatedly laid up with it. "The verdure of the plain," he says in one place, "had perished almost in a day. Hot winds, coming from the desert, had burnt up and carried away the shrubs; flights of locusts, darkening the air, had destroyed the few patches of cultivation, and had completed the havoc commenced by the heat of the sun.... Violent whirlwinds occasionally swept over the face of the country. They could be seen as they advanced from the desert, carrying along with them clouds of dust and sand. Almost utter darkness prevailed during their passage, which lasted generally about an hour, and nothing could resist their fury. On returning home one afternoon after a tempest of the kind, I found no traces of my dwellings; they had been completely carried away. Ponderous wooden frame-works had been borne over the bank and hurled some hundred yards distant; the tents had disappeared, and my furniture was scattered over the plain."