Spring Bank, near Alexandria, Va

P. O. Box 301                                                              Jan 4 1883

My dr Charlie

Yours rcd-

My arithmetic (& I studied mathematics at West Point) says 2 1/4 p.c. on $4000.00 is $100.00 as you first calculated it-- & not 90.00 as you afterwards made it & sent check for-

Get a blackboard & chalk & try it

Yours truly,

Fitz

Calculation at bottom of letter

4000

      2 1/4

                                                          _______

                                                          80.00

                                                             10.00

 -------

           $90.00