Called to testify before Monopoly Committee. Washington, D.C., Dec. 12. Called to testify late this afternoon before the Monopoly Committee were George Bovenzier of Kuhn, Loeb, & Co.; Charles Glore, of Glore, Forgan, & Co.; Edward N. Jesup of Lee Higginson Corp.; and Henry S. Sturgis, of the First National Bank of New York. All firms are of New York City