Correction--.

In the lead article last issue, Mark Young's five-dollar word, exogenous, tripped us up. We misspelled it twice, adding a recalcitrant "r."

A typo also rendered Mark's prestigious Boston area code as "717," rather than the correct "617." Here's his contact info.

Mark Young, senior vice president, Publishing Group, Citizens Bank, 28 State St., 15th Fl., MS 1510, Boston, MA 02109, 617-994-7045, fax [phone], [e-mail]