[Etymology unknown.] One of the main bars of a harrow. Also attrib.
1523. Fitzherb., Husb., § 15. The horse-harrowe is made of fyue bulles, and passe not an elne of lengthe.
1649. Blithe, Eng. Impr. Improv. (1652), 220. As little & light a harrow, which may contain three little buls & about five Tines in a Bull.
1677. Plot, Oxfordsh., 247. The great square Bull harrow, drawn by the second bull on the near side of the harrow.
1799. J. Robertson, Agric. Perth, 97. General Robertson of Lawers uses five bulls, having five teeth in each bull.
1843. B. Almack, in Jrnl. Agric. Soc., IV. I. 61. The bulls or parts to contain the teeth, were made of dry foreign pine.
