Correspondence Relative to the arrest of Ex-Secretary Cameron.
--On the 21st of April, President Lincoln communicated to Congress the following correspondence on the subject of the recent arrest of Ex-Secretary Cameron:
Mr. Brucster to Mr. Seward. No. 706 Walrutstarst, Philadelphia, April 16, 1862. Sir:
By the direction of General Simon Cameron, I send you a summon issued out of the Supreme Court of this State, at the suit of Pierce Butler va. Simon Cameron, July 1, 1862, No. 17I have, as his private counsel, ordered my appearance for him, while I also invite and request the intervention of the proper authorities in his behalf, and for his protection. I am, sir, truly, &c., Benjamin H. Brewsthe.
To Hon, Williant H. Seward, Secretary of State, Department of State, Washington, April 18, 1862. To Benjamin F. Brawthe, Esq., Philadelphia. Sir:
I have received your letter of yesterday, stating that by direction of Simon Cameron, you transmitted to me a summ