11.  Delta disburses its Sky Miles certificates by mail: members mail their requests and receive certificates in their names by mail in 15 days.

12.  Deluged by about 190,000 pieces of mail, CPB found the necessary $700,000.

13.  Currently, prosecutors in most jurisdictions battling hoaxes are charging perpetrators with crimes such as sending a threat through the mail.

14.  Despite increased security measures, the Postal Service said businesses can expect mail to be delivered as normal, except in cases when postal workers spot something suspicious.

15.  Despite its momentary concern about small givers contacted by mail, the president's re-election team relied chiefly on big givers, with Clinton himself the magnet.

16.  Customers also are ordering more high-profit enhanced services, such as call-waiting, caller identification and voice mail.

17.  Customers also risk reaching only voice mail.

18.  Customers can answer questions in a response form to be published in newspapers and mail it to Pacific Bell, P.O. Box 2295, Chatsworth, Calif. 91311.

19.  Customers can download their food and their Internet mail in the cafe of the Dallas Infomart, a convention and sales center known as a high-technology showcase.

20.  Customers receive an itemized list of each toll payment by mail each month.