A mutual insurance company engaged in business under Chapters 5, 9, 12, 13, 14, and 15, Title 78, Revised Statutes, before their repeal by Section 18, Chapter 40, Acts of the 41st Legislature, 1st Called Session, 1929, as amended by Section 1, Chapter 60, Acts of the 41st Legislature, 2nd Called Session, 1929, retains the rights and privileges under the repealed law to the extent provided by those sections.