How can I check this?

Engineerjw
Mon, 15 Nov 2010 16:51:22 +0000

Over a month ago I sent an updated version of my supplement essay to Brown through the mail. I had left out the part in the heading with my name, school, and birthday on the old one I submitted. I wrote a quick letter attached to this new essay asking to make it replace the old one.

How can I check that my new essay was received?