For greater certainty, the following are hereby especially enumerated and referred to as being among the other powers which are hereby conferred upon and which may be exercised by the City of Pleasanton, to wit:
a. All of the powers conferred upon cities and towns by Title 28 of the Revised Civil Statutes of the State of Texas, 1925, except as may hereafter be denied, limited or extended, are hereby conferred upon the City of Pleasanton as fully and completely as if such powers were herein separately enumerated.
b. All powers, privileges and immunities conferred upon cities of more than five thousand (5,000) inhabitants, by Section 4 of Chapter 147, acts of the 33rd Legislature, General Laws Regular Session, at pages 310 to 316, entitled, "An Act Authorizing Cities Having More Than Five Thousand Inhabitants, by a Majority Vote of the Qualified Voters of said City, at an Election Held for that Purpose to Adopt and Amend Their Charters," etc.; and such powers are hereby conferred upon the City of Pleasanton as fully and completely as if each said mentioned powers were herein separately enumerated; but enumeration of special powers herein or in the Statutes referred to, shall not be held or construed to preclude the city from exercising all powers of local government not denied by the Constitution and laws of the State of Texas, or by special limitations in this Charter, the purpose of this Charter being to enlarge upon the power extended by the general laws of cities incorporated thereunder, and to secure to the City of Pleasanton, all the powers conferred by the Constitution and laws of this State upon cities having more than five thousand (5,000) inhabitants.