1. By the father of the minor; but if he is dead or has abandoned his family, or is for any cause incapacitated from giving his assent, then 2. By the mother; and if she be dead or unable, or incapacitated for giving such assent, then, 3. By the guardian; and if there be no guardian, then by the clerk of the district court. [§3473.] [Sidenote: Natural guardian removed.] Upon complaint being made to the district court of the proper county, verified by affidavit, that the father or mother of a minor child is from habitual intemperance and vicious and brutal conduct, or from vicious, brutal and criminal conduct toward said minor child, an unsuitable person to retain the guardianship and control the education of such child, the court may, if it find the allegations in the complaint manifestly true, appoint a proper guardian for the child, and may if expedient, also direct that said child be bound as an apprentice to some suitable person until he attains his majority. But nothing herein shall be so construed as to take such minor child if the mother be a proper guardian. [§3492.] The same proceedings may take place and a like order be made, when the mother, who for any cause became the guardian of her minor child, is in like manner found to be manifestly an improper person to retain such guardianship. [§3493.] [Sidenote: Schooling and treatment of minors.] The master shall send said minor child, after the same be six years old, to school at least four months in each year, if there be a school in the district, and at all times the master shall clothe the minor in a comfortable and becoming manner. [§3497.] [Sidenote: Adoption of children. Who may adopt.] Any person competent to make a will is authorized in manner hereinafter set forth, to adopt as his own the minor child of another, conferring thereby upon such child all the rights, privileges and responsibilities which would pertain to the child if born to the person adopting, in lawful wedlock. [§3498.] [Sidenote: Consent of parents or officer.]