“the whip was the teamster’s badge of office. The muleskinner from his post astride the nigh-wheeler, with the top of the wagon close behind him, was restricted to a ‘blacksnake’ some eight to ten feet in length. The bullwhacker from his post on the ground alongside the nigh-wheeler had room in which to swing a more magnificent instrument— a three-to four-foot stock of hickory or other tough wood, and an eighteen- to twenty- foot lash of braided rawhide, tipped with a six- or eight-inch popper of rawhide.”