FORTY-FIFTH CONGRESS. Sess. II. Ch. 142, 145, 146. 1878. 87 for various articles provided for by treaty stipulation for the several Indian tribes, may be diverted to other uses for the benefit of the said tribes respectively, within the discretion of the President, and with the consent of said tribes, expressed in the usual manner; and that he cause report to be made to Congress, at its next session thereafter, of his action under this provision. Sec. 4. No purchase of supplies for which appropriations are herein Purehcsesni open made exceeding in the aggregate five hundred dollars in value at any marketone time shall be made without advertisement, except in case of exigency, when purchases may be made in open market in amount not exceeding three thousand dollars. Sec. 5. That when not required for the purpose for which appropri- Clerks, etc. ated, the funds herein provided for the pay of specified employees at any agency may be used by the Secretary of the Interior for the pay of clerks or other employees at such agency, but no deficiency shall be thereby created; and when necessary, specified employees may be detailed for clerical or other service when not required for the duty for which they were engaged. Sec. 6. That so much of the appropriations herein made as may be _ Apprvprwtivev required to pay for goods and supplies, and for transportation of the ",,',':”d'“""?/ ""““‘ same, for the year ending June thirtieth, eighteen hundred and seventy- ° ' nine, shall be immediately available; but no such goods or supplies shall be distributed or delivered to any of said Indians prior to July first, eighteen hundred and seventy eight. Approved, May 27, 1878. CHAP. 145.-An act to authorize the Commissioners of the District of Columbia to May 28, 1878. refund certain taxes erroneously collected and for other purposes. 3;*; Be it enacted by the Senate and House of Representatives of the United I Dl¤P*i°* °f O°· States of America in Congress assembled, That the Commissioners of the "¥‘,:;,‘0vBm on t District of Columbia be, and they are hereby, authorized and empowered taxes gmjouggugly to refund to any persons who have heretofore been erroneously assessed assessed. for special improvement taxes on property not belonging to them, such moneys as they shall be found to have paid as taxes upon such erroneous assessment; and the said Commissioners are empowered to correct any assessment so found to have been made, and collect the tax from the rightful owners of the property. Approved, May 28, 1878. CHAP. 146.-—An act to forbid the further retirement of United States legal-tender May 31, 1878. notes. *··;—~—— Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That from and after the passage L•¤t;=¤l·*_¤¤d¤r of this act it shall not be lawful for the Secretary of the Treasury or :;.’°‘;.;;b;(f,;;':m°“* other officer under him to cancel or retire any more of the United ’ ' States legal-tender notes. And when any of said notes may be redeemed Reissue. or be received into the Treasury under any law from any source what ever and shall belong to the United States, they shall not be retired cancelled or destroyed but they shall be re-issued and paid out again and kept in circulation: Provided, That nothing herein shall prohibit promo. the cancellation and destruction of mutilated notes and the issue of other notes of like denomination in their stead, as now provided by law. All acts and parts of acts in conflict herewith are hereby repealed. Approved, May 31, 1878.