The tourn (tour, turn) was the circuit made by the sheriff in medieval England to the hundreds of his shire. Here he would preside over the hundred court.

Apparatus and method for adaptively ranking search results
Anatomy, Growth and Survival of a Long-hypocotyl Mutant of Cucumis sativus Deficient in Phytochrome B
Building, maintaining, and using knowledge bases:a report from the trenches
Deep tillage and traffic effects on subsoil compaction and sunflower (Helianthus annus L.) yields
Soil compaction produced by tractor with radial and cross-ply tyres in two tillage regimes
Identification of Botanical Biomarkers in Argentinean Diplotaxis Honeys: Flavonoids and Glucosinolates
Effect of ultraviolet-B radiation on salt marsh vegetation: Trends of the genus Salicornia along the Americas
Tillage and traffic effects (planters and tractors) on soil compaction and soybean ( Glycine max L.) yields in Argentinean pampas
Traffic alternatives for harvesting soybean (Glycine max L.): effect on yields and soil under a direct sowing system.
METHOD AND APPARATUS FOR COMBINING MULTIPLE SEARCH WORKERS