Sec. 4. On the petition of as many as one hundred (100) legally qualified property taxpaying voters of any county which shall have adopted the provisions of this Act, praying for the authority to levy and collect said tax, the County Judge shall immediately order an election to be held throughout the county, said election to be held not more than thirty (30) days from the date of such order. The County Judge shall give notice of such election by publication of the order in some newspaper published in the county for twenty (20) days prior to the date of such election. Only legally qualified property taxpaying voters, who own property in the county and who have duly rendered the same for taxation, shall be allowed to vote in said election. The form of ballot is substantially as follows:

"For County Tax."

"Against County Tax."

The Commissioners Court shall, at its next regular or special meeting, canvass the returns of said election, and if a majority of the votes cast shall favor such tax, the Court shall declare the results and certify same to the County Board of School Trustees and the County Tax Assessor and Collector shall be authorized to assess and collect same. No election to revoke said tax shall be ordered until the expiration of three (3) years from the date of the election at which said tax was adopted.