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For this rendering of al-bahran, see note [41] on 25:53 .
This interpolated sentence reflects Razi's convincing explanation of the passage that follows here, and its connection with the preceding one.
See xxv. 53 and notes 3111 and 3112. The great salt Ocean with its seas and gulfs is all one: and the great masses of sweet water in rivers, lakes, ponds, and underground springs are also one: and each is connected with the other by the constant circulation going on, which sucks up vapours, carries them about in clouds or atmospheric moisture, and again brings them condensed into water or snow or hail to mingle with rivers and streams and get back into the Ocean.
Such as pearls and coral from the sea, and such delicately tinted stones as the Aqiq (carnelian), the agate, the goldstone, or other varieties of quartz pebbles found in river-beds, and considered as gems. Many such are found in the Ken river in Banda District (in India). Some river sands also yield minute quantities of gold. In large navigable rivers and big Lakes like those of North America, as well as in the sea, there are highways for shipping and commerce.
For this whole passage see xvi. 14 and notes 2034 and 2035. Both from the sea and from rivers and lakes we get fish, of which some kinds have a flesh particularly fresh and tender, and of a most delicate flavour.