Directions:

Priestley discovered oxygen at Bowood House in 1774 in the laboratory of Lord Shelburne; he lived in Calne 1773-1780.
Bowood can be accessed from Chippenham railway station at Cocklebury Road - N51 27.73 W02 06.93,
Bowood House = N51 25.70 W2 02.25.
"1" = Driving east from Chippenham, the first intersection outside town is London Road and New Road - N51 26.28 W2 04.32.
"2" = New Road develops into Black Dog Hill Road; the turnoff to Bowood is 3 km from previous intersection - N51 26.23 W2 01.86.
"3" = Parking lot and entrance of Bowood - N51 25.84 W2 02.51.
Priestley's home, while he was working in the Bowood laboratory, was 19 The Green (in Calne) - N51 26.14 W2 00.12.