D. Belteki, 'The Galvanic Connections of the Airy Transit Circle and the Airy Chronograph', pp.2-10.

J. McCarthy, 'Note on Why 'F, V, X, Y' on the Hebrew Enigma Machine', p.10.

W. Hackmann, 'The Tango Two: Magnetic Dancers on the Gramophone', p.11.

D. J. Bryden, 'Marketing Instruments by Subscription in the British Isles: 1700–1799 Part 2: William Bradford's instrument for detecting counterfeit gold (1752) to John Russell's Lunar Globe (1796)', pp.12-24.

M. Cowham, 'Magnetic Compass Dials', pp.26-28.

J. Donnelly, 'Building a 21st Century Cometarium', pp.29-32.

G. Danisan, 'The Paper Instruments in the History of Ottoman Astronomy', pp.34-43.