56731 Requests for subscriptions should be sent to the publisher. Starting in 1995 three volumes were published each year. Starting in 2000 four volumes are published each year. They will be dated January, April, July and October. For subscription details, please contact the Charles Babbage Research Centre.
All back issues are available.
Special volumes are sometimes issued, at an additional charge. Subscription rates are the same, whether direct or through an agent. Subscribers who employ an agent can expect to pay a further fee to the agent. The author should retain a copy of the paper. The Editorial Board cannot accept responsibility for the return of submissions.