Sec. 3. All of the provisions of this Act shall apply equally to all Spanish and Mexican land grants and titles issued by the Spanish or Mexican governments prior to the Texas Revolution of 1836, which have subsequently been recognized by the Republic of Texas, or by the State of Texas, as valid.
Sec. 4. No provision of this Act shall affect the rights of any parties involved in pending litigation at the effective date of this Act.  The provisions of this Act are and shall be held and construed to be cumulative of all laws of this State on the subject treated of and embraced in this Act.  All laws or parts of laws in conflict herewith are hereby repealed.  If any section, subdivision, paragraph, sentence or clause of this Act shall be held to be unconstitutional, the remaining portions of this Act shall nevertheless be held valid and binding.