rity); Phillips v. Fidalgo Island Packing Co., 238 F.2d 234 (9th Cir. 1956); Flavell v. Dept. of Welfare, City and County of Denver, 355 P.2d 941, 943 (Colo. 1960); Tulsa Exposition and Fair Corp. v. Board of County Commissioners, 468 P.2d 501, 507 (Ok. 1970)(Public officers possess only such authority as is conferred upon them by law and such authority must be exercised in the manner provided b