The Mechanics' Institute Exhibition of San Francisco closed on the evening of October 30. The receipts were over $61,000. A company has been organized in Kalamazoo, Michigan, with a capital stock ot 100,000, for the manufacture of railroad cars. A Russiau engineer has run a railway train successfully from ChariF to Kutsehuan, a distance of 53'6 miles, the only fuel applied being raw commercial naphtha. The Hartford and New Haven Railroad Company have commenced to erect their new freight building on Belle dock, New Haven. It is to be 300 f eetlong by 40 broad. The Association for |he Promotion of the Industry of Prussia offers a premium of 8225 for the prepiration of au enamel on cast iro n, of variegated colors unaffected by exposure to air, which lias proved effectual for at least a year. It is statsd that by melting copper in plumbago crucibles previously lined inside with pipe-clay and dried, non-porous castings may be obtained. As soon as copper, while in a molten state, is in contact with coal, orcar-bonaceous matier, it yields a porous and spongy castiug. From the report of the amount of trade between the United States and foreign countries it appears that England figures for the enormous total of $190,456,700 of our exports. The British Empire, in ad, receives our exports to the amount of $230,000 000. Spain and all her possessions get $33,500,000, of which Cuba has $12,600,000. Liberia has the least viz., about $70,000. Ol all that we send out, $275,753,000 are shipped in foreign, and but $138,:301,638 in American vessels. The directors of the Services Maritimes des Messageries Impriales have announced that the steamship Godavery will be dispatched from Marseilles on the 10th of November, to Port Said where she is expected to arrivo on the eve of the inauguration of the Suez canal. After the opening ceremony she Till pass through the canal on her voyage direct to Calcutta. The length of the Godavery is 305 feet, her burden 1,380 tuns, and her draft with full cargo 17feet 9 inches. Betw een May 10, 1865, and May 9 of the succeeding year, a passenger on the road of the Hudson River railroad Company, between theNewTork station and SpuytPn Duyvil, had to pay, on live hundred and twenty-six occasions, a few cents above the fare legally due to the company. Each time lie protested sgainet the overcharge, and thus reserved to himself the privilege of prosecuting. On May 9,1866, he brought an action against the railroad company, and a decision has recently been given by the Hon. Chas P. Kirkland, the referee in the case, awarding damages covering the sum Illegally collected, and fifty dollars each time an overcharge "was pai$ nraotmting in all to shout $26,315,