To search for Journals using Discover Local, enter search terms for topic or title in top search box; narrow to Materials field to Journals.
EXAMPLE SEARCH (for a journal on the topic of Eugenics)
WHY SEARCH FOR PRIMARY SOURCE JOURNALS USING DISCOVER LOCAL?
For additional tips see Finding Journals by History Librarian Laurie Scrivener
NOTE: If you want to SEARCH FOR A TOPIC over a wide range of periodicals, you should search DATABASES and NOT DISCOVER LOCAL (See "Find Articles" tab at left)