Art. 13. If any one of the scholars who are candidates for teachers wishes to continue one year longer in the school in order to perfect and increase the knowledge which she has acquired, she may do so, but under condition of paying the annual board from her possessions, if she should be a boarder, and if it is not unadvisable in the opinion of the directress that she remain in the institution. Art. 14. The scholars of the normal school who shall have completed the courses of their studies, and who shall have obtained for their good deportment, application, and knowledge, the mark of excellent in the final examinations of the three consecutive years, shall receive teachers' certificates, with expression in the certificate of their honorable mark. Such persons shall be empowered to take charge of ascenso schools. Those who shall not have obtained the mark of excellent, but that of good or fair in the above-mentioned examinations, shall also receive teachers' certificates, with the corresponding mark mentioned therein; and such persons may take charge of entrada schools. If those who shall not have passed in the said examinations, after the exercise has been repeated, shall deserve a passing mark, they shall receive assistant teachers' certificates. CHAPTER III Of the staff of the school Art. 15. The normal school for women teachers in Nueva-Cáceres shall be organized under the direction of the sisters of charity, and shall make use of the elements of the staff and equipment of the school of Santa Isabel. Art. 16. The staff of the normal school shall consist of the following: 1. A directress, who shall have charge of the teachers, scholars, and inferior employes of the institution. In her charge shall be the economic part, the direction, order, and discipline of the same, and the allowances which correspond to it, according to the schedule and regulations of the school. The directress shall preside over the literary ceremonies of the school whenever the provincial chief, the reverend bishop of Nueva-Cáceres, or the board of supervision and oversight, does not attend them. She shall visit the classes and the practice school, in order to investigate the explanations of the teachers and the progress of the scholars. She shall correct those faults which she observes, and recommend to the board of supervision and oversight the expulsion of those pupils in the cases and conditions which are expressed in the interior regulations of the school, informing the above-mentioned board of the extraordinary measures which she believes it necessary to take. 2. A head teacher in the practice school, in charge of the communication of the teaching to the girls, responsible for their instruction, and for order and discipline in her department.