At MIT's Barker Engineering we shelve all periodicals by title. A problem can
arise when titles change, causing runs to be split.  Even worse, when an older
title is recataloged the information on the spine of bound volumes may bear no
recognizable relationship to the new entry in the catalog.  I have become a
convert to classified periodicals.
Carol Robinson
Barker Engineering Library
csrobins@athena.mit.edu