On September 1, Adams in Portland, Oregon, wrote a letter to Brown in New York City, offering to sell to Brown one thousand tons of chromite at $48 per ton, to be shipped by S.S. Malabar sailing from Portland, Oregon, to New York City via the Panama Canal. Upon receiving the letter on September 5, Brown immediately mailed to Adams a letter stating that she accepted the offer. There were two ships by the name of S.S. Malabar sailing from Portland to New York City via the Panama Canal, one sailing in October and the other sailing in December. At the time of mailing her letter of acceptance Brown knew of both sailings and further knew that Adams knew only of the December sailing. Is there a contract? If so, to which S.S. Malabar does it relate?