The law requires that your approbation be obtained for making purchases of the public debt. As there is no other mode to apply three of the 8 annual millions this year, the Commrs. of the sinking fund have directed it should be done, provided you assented thereto. An extract of the minute of their proceedings is enclosed for your consideration. The word “Approved” at bottom will be sufficient if you assent.   With respectful attachment Your obedt. Servt.