Motions for leave to appeal denied on the ground that the appeals lie as of right upon a constitutional question. (Civ. Prac. Act, § 588, subd. 1, cl. [a].) All relevant questions of law may be argued. (Powers v. Porcelain Insulator Corp.,285 N.Y. 54, 57; Bogart v. County of Westchester, 295 N.Y. 934;Estin v. Estin, 296 N.Y. 828.)