Resignation and Appointments in the Federal army.
Washington, Nov. 25.
--Gen. Blenker today tendered his resignation.
Col. Havelock, a British Count, and DeVillervin Trench, have been appointed aids to Gen. McClellan.
The Government has decided to pay the ar arages of the officers of Gen. Fremont's appointment, up to the time Gen. F. was relieved of duty.