St. Louis, Dec. 7. - Seventeen States were represented by their adjutant generáis and other militia officers at a meeting at the Southern hotel for the purpose of advancing the Interests of the militia of all the states. The states represented are Ohio, Indiana, Illinois, Iowa, Wisconsin, Minnesota. South Dakota, Nebraska, Kansas, New Mexico, Oklahoma, Arizona, Texas, Tennessee, Missouri, Wyoming and Colorado. A large number of other states are interested in the movement but for unavoidable reasons are not represented.