letter office, of the issuing of postage stamps and stamped envelopes for the pre-payment of postage, and of the accounts connected therewith. To the Third Assistant Postmaster General all postmasters should direct their quarterly returns of postage; those at draft offices, their letters re porting quarterly the net proceeds of their offices, and those at depositing offices, their certificates of deposite; to him should also be directed the weekly and monthly returns of the depositaries of the department, as well as all applications and receipts for postage stamps and stamped envelopes, and for dead letters. Inspection Office.—Chief clerk, and seventeen clerks. To this office is assigned the duty of re ceiving and examining the registers of the arri vals and departures of the mails, certificates of the service of route agents, and reports of mail failures; of noting the delinquencies of con tractors, and preparing cases thereon for the ac tion of the Postmaster General; furnishing blanks for mail registers, and reports of mail failures; providing and sending out mail-bags and mail- locks and keys, and doing all other things which may be necessary to secure a faithful and exact performance of all mail contracts. All cases of mail depredation, of violation of