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lls us that, of the whole foreign importation of grain into Attica, one half came from the Scythians of the Euxine, and estimates its amount in ordinary years at 400,000 medimni = 600,000 bushels. The fertility of the soil and the habits of the people remain nearly the same, and the trade of England with Odessa, at the present time, is a counterpart of that which twenty-three centuries ago was carried on between Athens and the Scyths of the Pontus. The Greeks in former times [Strabo, A. D. 16] imported from the Chersonesus corn and the cured fish of Palus Maeotus. Leucon is said to have sent to the Athenians 2,100,000 medimni of grain from Theodosia (a town). A medimnus was about 1 1/2 bushels, English. A Sicilian bushel of wheat in the time of Polybius (150 B. c.) was worth, in Cisalpine Gaul, Lombardy, and Piedmont, 4 oboli per bushel, barley 2 oboli. The obolus was about 3 cents. The tavern price there for a good meal was 1/4 obolus. The granaries of the Romans wer
re found in many parts of the world, and the references to the subject are found scattered in the writings of Herodotus, Pliny, and very many others of the writers of antiquity. It is said that on digging near the river Ochus [in Bactria] a spring of oil was discovered. It is probable that as certain nitrous, astringent, bituminous, and sulphurous fluids permeate the earth, greasy fluids may be found, but the rarity of their occurrence makes their existence almost doubtful. — Strabo, A. D. 16. See petroleum. Oil-well Pack′ing. The usual method of packing oil-wells has been by a seed-bag, so called, consisting of a leathern bag filled with flaxseed and placed around the tube, to fill the space between the latter and the sides of the well. The office of the seed-bag is to prevent the water which percolates through upper strata from reaching the bottom of the well, where it would float the oil, and require to be pumped out before the oil would sink to a point where the end