disc of coal from sample bore
Digital image on Keeper’s computer – S:/Keeper/MyPictures/Exhibitions/DisplayNewVisitorCentre. Taken October 2003.
Exhibition Label Text: In 1804, James Ryan invented a process where large rock samples
like this were collected. The previous boring method collected only broken rock fragments and dust.
Hollow cylindrical rods dug deep into the ground and collected the rock samples in their hollow cores.
3.0 tall, diameter: 5.5 cm.