I can't get a dialling tone <a href=" http://www.mediarakkers.nl/index.php/generic-serevent-inhaler.pdf#contempt ">buy serevent</a> Arch Coal Inc.'s stock dropped 24 cents, or 4.8 percent, to $4.75 in Friday afternoon trading, selling off with other coal company stocks. Over the past year, shares of the St. Louis company have traded between $3.47 and $8.86.