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| | Orrery signed Edward Beavess, made by Benjamin Cole, London, circa 1760 (tellurium) (Site not responding. Last check: 2007-09-29) |
 | | This type of geared model of the solar system, or tellurium, traces its origin to an instrument devised by George Graham and Thomas Tompion in 1712. |
 | | That model was soon copied and improved by John Rowley, their neighbor in Fleet Street, and "Master of Mechanics" to George I. Rowley also made many instruments for Charles Boyle, 4th Earl of Orrery, who bequeathed his collection to Christ Church, Oxford in 1731. |
 | | Rowley was succeeded by his former apprentice, Thomas Wright (d.1767) whose trade card depicts an orrery similar to this example. |
| www.snellenburg.com /Newpages/Sci_instr/orrery/orrery_beavess.htm (427 words) |
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