A conflict or controversy ; a conflict of claims or rights; an assertion of aright, claim, or demand on one side, met by contrary claims or allegations on the other.Slaven v. Wheeler, 58 Tex. 25 ; Keith v. Levi (C. C.) 2 Fed. 745; Ft. Pitt Gas Co. v.Borough of Sewickley, 198 Pa. 201, 47 Atl. 957; Railroad Co. v. Clark, 92 Fed. 968, 35 C. C. A. 120.