53 STAT.] 76TH CONG. , 1 ST SESS.-CH. 119-MAY 10, 1939 ing employees and others (at not less than cost), and the proceeds therefrom shall reimburse the appropriation for the institution; and not exceeding $1,500 of this sum may be expended in the removal of patients to their friends; not exceeding $1,000 for expenses of attendance at meetings or conventions concerned with the work of psychiatry, medicine, and other scientific subjects of interest to Saint Elizabeths Hospital, when specifically authorized by the Secretary of the Interior; not exceeding $1,500 in the purchase of such books, periodicals, and newspapers as may be required for the purposes of the hospital and for the medical library, and not exceeding $1,500 for the actual and necessary expenses incurred in the apprehension and return to the hospital of escaped patients: Provided, That so much of this sum as may be required shall be available for all neces- sary expenses in ascertaining the residence of inmates who are not or who cease to be properly chargeable to Federal maintenance in the institution and in returning them to such places of residence: Provided further, That not exceeding $200 additional may be paid to two employees to provide mail facilities for patients in the hos- pital: Provided further, That no part of this appropriation shall be expended for the purchase of oleomargarine or butter substitutes except for cooking purposes: Provided further, That during the fiscal year 1940 the District of Columbia, or any branch of the Gov- ernment requiring Saint Elizabeths Hospital to care for patients for which they are responsible, shall pay by check to the Superintendent, upon his written request, either in advance or at the end of each month, all or part of the estimated or actual cost of such mainte- nance, as the case may be, and bills rendered by the Superintendent of Saint Elizabeths Hospital in accordance herewith shall not be subject to audit or certification in advance of payment; proper adjustments on the basis of the actual cost of the care of patients paid for in advance shall be made monthly or quarterly, as may be agreed upon between the Superintendent of Saint Elizabeths Hos- pital and the District of Columbia government, department, or estab- lishments concerned. All sums paid to the Superintendent of Saint Elizabeths Hospital for the care of patients that lie is authorized by law to receive shall be deposited to the credit on the books of the Treasury Department of the appl)opriation made for the care and maintenance of the patients at Saint Elizabetls Hospital for the year in which the support, clothing, and treatment is provided, and be subject to requisition upon the approval of the Secretary of the Interior. 737 Removal of patients to their friends. Proisos. Return of inmates no longer Federal charges. Mail facilities. Butter substitutes, restriction. Payment for care of patients from the Dis- trict, etc. Credit of paymnents COLUMBIA INSTITUTION FOR THE DEAF For support of the institution, including salaries and incidental expenses, books and illustrative apparatus, and general repairs and improvements, and including not to exceed $11,000 for improvement to the power, heating, and lighting system, $150,950. HOWARD UNIVERSITY Salaries: For payment in full or in part of the salaries of the officers, professors, teachers, and other regular employees of the uni- versity, the balance to be paid from privately contributed funds, $557,000; General expenses: For equipment, supplies, apparatus, furniture, cases and shelving, stationery, ice, repairs to buildings and grounds, and for other necessary expenses, $188,000; Total, Howard University, $745,000. Maintenance, etc. Salaries. General expenses.