?14 includes all other extra expenditure due to plague but brought to account under the ordinary appropriate service heads. (i) All officers who draw bills for indirect plague expenditure should write conspicuously at the head of each such bill, besides the account head, the word 'Plague' in red ink. If only some of the items in a bill are plague charges, the word 'Plague' should be written against each such item instead of at the head of the bill. (ii) Contingent expenditure on account of plague, e.g., stationery, postage, telegrams, office furniture and such like, should be charged against the heads of account to which the salaries of the officers incur- ring such expenditure are debited. (iii) The pay and allowances of officers and establishments form- ing part of existing departments or services whose employment on plague duty does not involve the payment of salaries to other persons for the performance of their legitimate duties, or the payment to them of extra allowances on account of plague, do not constitute indirect plague charges (of course they are not direct plague charges) because they do not involve extra expense. Plague correspond ence and destruction of records. 29. All correspondence about plague should be addressed to the Secretary to Government, Local Self-Government (Public Health) Department, through the Director of Public Health and should be marked with the word 'Plague' in red ink on the outside covers and on the left-hand corner of the papers. Telegrams should be addressed to ' Madras, Plague '. All references regarding account matters should be addressed to, or forwarded through, the Accountant-General. 30. Plague correspondence should be entered in a separate current register, and the papers shown against a new item ' Plague ' in the half-yearly business returns. A separate series of numbers should be given to the disposals, and the question of destroying or retaining them should be dealt with in accordance with B.P. No. 101, dated 18th April 1898. Reports of plague cases and deaths received from authorities outside the Presidency may be destroyed at the end of the month succeeding that to which they relate; all other reports and returns after one year.