Show cotton brokers before jury new york A sensation was caused on the new york cotton exchange when it became known on tuesday that a number of members of the ex change had been subpoenaed to ap pear before the federal grand jury one rumor was mas that the subject under investigation was the trading of a very large speculator in connection with advance information secured by he speculator on government crop es images it is generally understood hat the men summoned will be ques boned as to the methods of fixing the grades of cotton deliverable on the ex change |