When summertime grain markets are weak due to perceptions of large crops and abundant supplies, they typically find seasonal lows during the last days of August or the early few days of September. General Comments Grain and soy prices continued to grind slowly lower during overnight trading amid mostly average volume. Another sharp drop on the part of the U.S. dollar to its lowest level in two years has not changed the philosophically bearish mindset that has prevailed ever since the post-August WASDE rally ran out of gas. The U.S. Labor Day holiday is 4 September, which represents the symbolic end of summer even if the calendar says that autumn will not begin for another two-and-a-half weeks. When summertime grain markets are weak due to...