How to write a cover letter...

<p>Hi! </p>

<p>I would like to send an abstract for research I conducted as supplementary material. </p>

<p>Harvard asks for a cover letter: "Include a cover letter with your legal name, address, high school and date of birth and a brief description of what you are sending." How exactly do I format this, and what do I say? Do I strictly just say "this is what i'm sending" or do I elaborate in some way?</p>

<p>Thanks in advance!</p>

<p>Please? Thank you!</p>