This unusual monument celebrates one of the great engineering achievments of the Industrial Revolution and the huge boulder is inscribed Near this spot in 1765 James Watt conceived the idea of the separate condenser for the steam engine; patented 1769.

This design innovation revolutionised the efficiency of steam engines and it paved the way for more effective machinery in mines, mills and factories.

This article is based on the guidebook "The Glasgow Guide".

The James Watt Commemorative Stone. The tall multistorey flats are in the Gorbals, just across the River Clyde from the Green.