For a member of Congress:

Hon. E. C. Delta.

For an officer in the navy:

Capt. Henry Lee, U. S. N.

For an officer in the army:

Col. Edward Holmes, U. S. A.

For a professor:

Prof. E. L. James.

If the honorary addition, LL.D., A. M., or any such title belongs to your correspondent, add it to his name on the envelope, thus:—

J. L. Peters, LL.D.