ACCURATE PREDICTION OF STONEHENGE DATE: “An Attempt to Ascertain the Date of the Original Construction of Stonehenge from its Orientation” (Proceedings of the Royal Society of London, Vol. 69, pp. 137-147)

London: Royal Society of London, 1902. First Edition. Hardcover. Very Good. Norman Lockyer (1836-1920) and Frances Cranmer Penrose (1817-1903) acccurately predict the date of Stonehenge (1680 BC) by measuring the difference between its orientation and the direction of sunrise at the summer solstice (1 degree and 12 arc seconds) and calculating how many years ago this would have been given changes in the Earth's rotation. Carbon dating now has it at 1848 BC.

Also contains numerous papers by Karl Pearson on intelligence. vii, [1], 501 pp. 8vo. Blue cloth spine and corners with marbled paper insets to covers. Five raised bands with gold titling (truncated) to spine, call number handwritten in white ink at base of spine. Wear and scuffing to both from library use. Ex-library with bookplate and library stamp on title page of each volume, some library stamps within. Numerous plates illustrate articles. (Inventory #: 29130)