The reporter shall prepare all such decisions for publication. The report of each case shall contain the title of the case, a syllabus of the points decided, a statement of so much of the facts of the case as may be necessary to understand the decision, the names of counsel, and the opinion of the court: Provided, That a memorandum opinion may be prepared in any case where no new question of law is decided or which is otherwise considered as having no value as a precedent. Such a memorandum opinion need not contain a syllabus or statement of facts. Each volume shall contain a list of all the cases reported, alphabetically arranged, and also a complete index.