As has already been intimated, the Mining Department was from the first not very securely held in the bonds of the general organization, and it is very doubtful whether the 27,000 miners should be included in I. W. W. membership estimates even during the period while the Western Federation was nominally a department of the Industrial Workers of the World. According to Secretary Trautmann, it was evident "on August 1, 1905, that those brave men of the American Labor Union, numbered then 1,100, and approximately 700 in the Metal Department, [and] could not be swayed by the denunciation of the opposition in the West, those under cover as friends, often more dangerous than those openly fighting the I. W. W." "These 1900 [1800]," continued Mr. Trautmann, "constituted the only force with which the constructive work was begun."[213] President Sherman reported that on September 10, 1906, the locals holding charters in the Industrial Workers of the World numbered 394, of which number 120 were not at that time in good standing, so that there were at the time of the second convention 274 active locals enrolled.[214] The greater part of this number consisted of local unions directly attached to the general organization without any intervening subordinate division or subdivision. A considerable minority of the total, however, comprised local unions which were only indirectly attached to the general organization, such locals being enrolled in District Councils or National Industrial Unions, or even Industrial Departments and being directly responsible to that council, national union, or department. There were but three departments actually organized as such during the first twelve months. These were the Transportation Department, the Metals and Machinery Department, and the Mining Department. The Mining Department was the only one of the three having the members necessary to justify existence as a separate autonomous department, and it was finally the only department recognized as such at the second convention. The Western Federation of Miners was thus the I. W, W.'s only genuine department--and a department, moreover, which was agitating _sub rosa_ all the while against the general organization of which it was even a nominal department for but a few months. Concerning the Transportation Department, Secretary Trautmann reported to the convention that, "the United Brotherhood of Railway Employees ... installed itself as the Transportation Department of the I. W. W., it being accepted as a fact that said Brotherhood was an integral part of the American Labor Union and had at the time of installment 2,087 members...."