Tending to excite lust; lewd; indecent; obscene; relating to sexual impurity; tending to deprave the morals ln respect to sexual relations. See Swearingen v. U. S., 161 U. S. 446, 16 Sup. Ct. 562, 40 L. Ed. 765; U. S. v. Britton (Com. C.) 17 Fed. 733; Dunlop v. U. S., 165 U. S. 486, 17 Sup. CL 375, 41 L. Ed. 799; U. S. v. Durant (D