SCIENCE CLASS
'(<a href="http://www.j-archive.com/media/2006-04-26_DJ_10.jpg" target="_blank">Kelly of the Clue Crew shows a diagram of the brain on a monitor.</a>)  Descartes called <a href="http://www.j-archive.com/media/2006-04-26_DJ_10a.jpg" target="_blank">this</a> gland "the seat of the rational soul", & it's named for its pinecone-shaped appearance'
the pineal gland