Art. 21. Examinations shall be held four times each year in the normal school for the obtaining of assistants' certificates. Those who present themselves for the said examinations shall have the qualifications established in art. 9, for those who desire to enter the school. They shall be conversant with some of the matters established in art. 4, in regard to the subjects suitable for the acquisition of teachers' certificates of elementary primary instruction, according to the schedule approved by the superior government. Such examinations shall be public, and shall be held before the directors and teachers of the normal school. Art. 22. [The same as Art. 26 of the regulations of 1863. See ante, p. 95.] Of the issuing of teachers' and assistants' certificates Art. 23. The General Division of Civil Administration has the right of issuing certificates as superior elementary and assistant teachers, at the recommendation of the director of the normal school. Art. 24. [The same as Art. 28 of the regulations of 1863. See ante, p. 95.] Of the competitive examinations to obtain a regular appointment in the término schools of first and second grades. Art. 25. The vacant término schools of the first and second grades shall be supplied by competitive examinations. Such competitive examinations shall be held whenever the General Division of Civil Administration considers it necessary. Competitive examinations shall be announced three months beforehand, and all those who shall have obtained a teacher's certificate for superior primary instruction shall be entitled to participate in them. Art. 26. The examinations shall take place before a tribunal composed of five judges, appointed by the director from among the instructors of the normal school, and shall be ruled by an official schedule drawn up by the same persons, and approved by the superior government. In that schedule shall be contained the matters of the studies peculiar to the teaching profession. Art. 27. The examination exercises shall be oral and written. The oral exercises shall consist: 1. In the reply to questions chosen by lot in regard to religion and ethics, pedagogy, Castilian grammar, arithmetic, principles of geography, history of España and the world, principles of algebra and geometry, principles of physics and natural history, and principles of agriculture. Questions in each one of these matters shall be prepared for this purpose in distinct lists, and numbered tickets shall be placed in an urn. The competitor shall draw three tickets, and after reading the questions on religion and ethics for those same numbers, shall reply to at least one of them. Then he shall draw three other tickets for the examination in pedagogy; and so on, for the examination in the other studies. In the drawing of the questions for each subject, there shall always be twenty-five tickets. The questions which are answered shall be replaced by others.