Even in our day, some remains are to be found of the walls which the ancient cultivators built to support the soil on the declivities of the mountains; the form of the cisterns in which they collected the rain-water; and traces of the canals by which this water was distributed over the fields. These labours necessarily created a prodigious fertility under an ardent sun, where a little moisture was the only requisite to revive the vegetable world. The accounts given by native writers respecting the productive qualities of Judea are not in any degree opposed even by the present aspect of the country. The case is exactly the same with some islands in the Archipelago; a tract, from which a hundred individuals can hardly draw a scanty subsistence, formerly maintained thousands in affluence. Moses might justly say that Canaan abounded in milk and honey. The flocks of the Arabs still find in it a luxuriant pasture, while the bees deposite in the holes of the rocks their delicious stores, which are sometimes seen flowing down the surface. The opinions just stated in regard to the fertility of ancient Palestine receive an ample confirmation from the Roman historians, to whom, as a part of their extensive empire, it was intimately known. Tacitus, especially, in language which he appears to have formed for his own use, describes its natural qualities with the utmost precision, and, as is his manner, suggests rather than specifies a catalogue of productions, the accuracy of which is verified by the latest observations. The soil is rich, and the atmosphere dry; the country yields all the fruits which are known in Italy, besides balm and dates.[6] But it has never been denied that there is a remarkable difference between the two sides of the ridge which forms the central chain of Judea. On the western acclivity, the soil rises from the sea towards the elevated ground in four distinct terraces, which are covered with an unfading verdure. The shore is lined with mastic-trees; palms, and prickly pears. Higher up, the vines, the olives, and the sycamores amply repay the labour of the cultivator; natural groves arise, consisting of evergreen oaks, cypresses, andrachnés, and turpentines. The face of the earth is embellished with the rosemary, the cytisus, and the hyacinth. In a word, the vegetation of these mountains has been compared to that of Crete. European visitors have dined under the shade of a lemon-tree as large as one of our strongest oaks, and have seen sycamores, the foliage of which was sufficient to cover thirty persons along with their horses and camels.