Next is the harbour Derrhis,[823] which has its name from an adjacent black rock, resembling δέῤῥις, a hide. The neighbouring place is called Zephyrium. Then follows another harbour, Leucaspis (the white shield), and many others; then the Cynossema (or dog’s monument); then Taposeiris, not that situated upon the sea; here is held a great public festival. There is another Taposeiris,[824] situated at a considerable distance beyond the city (Alexandreia). Near this, and close to the sea, is a rocky spot, which is the resort of great numbers of people at all seasons of the year, for the purpose of feasting and amusement. Next is Plinthine,[825] and the village of Nicium, and Cherronesus a fortress, distant from Alexandreia and the Necropolis about 70 stadia. The lake Mareia, which extends as far as this place, is more than 150 stadia in breadth, and in length less than 300 stadia. It contains eight islands. The whole country about it is well inhabited. Good wine also is produced here, and in such quantity that the Mareotic wine is racked in order that it may be kept to be old.[826] 15. The byblus[827] and the Egyptian bean grow in the marshes and lakes; from the latter the ciborium is made.[828] The stalks of the bean are nearly of equal height, and grow to the length of ten feet. The byblus is a bare stem, with a tuft on the top. But the bean puts out leaves and flowers in many parts, and bears a fruit similar to our bean, differing only in size and taste. The bean-grounds present an agreeable sight, and afford amusement to those who are disposed to recreate themselves with convivial feasts. These entertainments take place in boats with cabins; they enter the thickest part of the plantation, where they are overshadowed with the leaves, which are very large, and serve for drinking-cups and dishes, having a hollow which fits them for the purpose. They are found in great abundance in the shops in Alexandreia, where they are used as vessels. One of the sources of land revenue is the sale of these leaves. Such then is the nature of this bean. The byblus does not grow here in great abundance, for it is not cultivated. But it abounds in the lower parts of the Delta. There is one sort inferior to the other.[829] The best is the hieratica. Some persons intending to augment the revenue, employed in this case a method which the Jews practised with the palm, especially the caryotic, and with the balsamum.[830] In many places it is not allowed to be cultivated, and the price is enhanced by its rarity: the revenue is indeed thus increased, but the general consumption [of the article] is injured.