adding a letter for replacement

<p>if i were to send another envelop with the essays that i want to use over those i had already sent. should i say to replace them on the envelope or in a formal letter on the inside. OR BOTH?!</p>

<p>sending it out in 5 minutes...</p>

<p>I would do a letter of explanation and just say "office of admissions" on the envelope.</p>

<p>oh well i already sent it out. on the envelope i said "please replace previous materials with these" and sent a letter in it that said that too</p>