Subscription Details . Order/Renew for 2013 . ... The ASP offers Institutions a special subscription rate to electronic Mercury magazine, our quarterly magazine published in January, April, July, and October. ... Subscription include access to the electronic archives from 2007 on. We offer IP address authentication and do not require a license agreement for institutional subscriptions. ... Note: ASP Membership benefits are not included with the Institutional Mercury Subscriptions. ...