Chadwyck-Healey maintenance window this Saturday

Please note that some Chadwyck-Healey products will be taking an upgrade
maintenance window on *Saturday, November 3, from 2:00 a.m. to 6:00 p.m. EDT*.
Database usage (including the availability of PDFs) may be affected during this
time. The databases undergoing maintenance are:

  * Black Studies Center
  * British Periodicals
  * Colonial State Papers
  * History Study Center
  * House of Commons Parliamentary Papers
  * Periodicals Archive Online
  * ProQuest Learning Literature