The Petrospheres of St Ives

St Ives Estate, Bingley, West Yorks.

A number of mysterious Petrospheres have been found at St Ives. Scholars have made varied suggestions about their identity. These include:

a). Stone Age Art

b). Neolithic Ball Bearings

C). 17th Century Cannon Balls

d). Misidentified Cannonball Concretions

e). Alien remains containing the Secrets of Life

f). Apprentice exercises by stone masons.

g). Roman Trebuchet ammunition.