Subscriptions are accepted on a per-volume basis only, starting with the fall issue. Rates are $40.00 per year (domestic) and $45.00 per year (foreign), or $17.50 for individual issues. All subscriptions will be renewed automatically unless the subscriber provides timely notice. Address changes should be sent to the Journal editorial office at least one month before the date on which the change is to take effect. Please provide an old mailing label, if possible. The Post Office will not forward copies unless extra postage is paid by the subscriber. Duplicate copies will not be sent.