BC Museum: Introduction to the 18th & 19th Centuries http://www.bordercolliemuseum.org/18th-19thCenturies/Introduction.html Old English Farming Books from Tull to the Board of Agriculture, 1731 to 1793 (1950, C. Lockwood): Below, "The Shepherd's Dog" Chambers's Encyclopaedia , 1883 . Inevitably, he neg...