Choir gaur; the grand orrery of the ancient Druids commonly called Stonehenge, on Salisbury Plain, astronomically explained, and mathematically proved to be a temple erected in the earliest ages, for observing the motions of the heavenly bodies. Illustrated with three copper plates / by Dr. John Smith.

Licence: Public Domain Mark

Credit: Choir gaur; the grand orrery of the ancient Druids commonly called Stonehenge, on Salisbury Plain, astronomically explained, and mathematically proved to be a temple erected in the earliest ages, for observing the motions of the heavenly bodies. Illustrated with three copper plates / by Dr. John Smith. Source: Wellcome Collection.