A servitude can be created only by one who has a vested estate in the servient tenement.
§ 70-17-104, MCA
En. Sec. 1253, Civ. C. 1895; re-en. Sec. 4510, Rev. C. 1907; re-en. Sec. 6752, R.C.M. 1921; Cal. Civ. C. Sec. 804; Field Civ. C. Sec. 248; re-en. Sec. 6752, R.C.M. 1935; R.C.M. 1947, 67-604.