The Philadelphia Federal Reserve's gauge of manufacturing activity came in at -30.7 in August, far short of expectations of 3.7. Readings above 0 point to expansion, while those below 0 indicate contraction.More headlines from FoxBusiness.com:http://email.foxnews.com/t?ctl=12EAE:7469D46E31DAE9CA315317D093CBEA9E&------------------------------------------------------------To learn more about all of