...studies as, by law or custom, are required as subjects of instruction by special teachers or supervisors shall entitle the holder thereof, when he or she has...examination provided in section 5 of this act, to a special certificate valid for special cerfour years in any school district in Ohio; provided that tlflcateno...

...university, approved by the state commissioner of common schools, shall entitle the holder hereof, when he or she has successfully passed the examination...provided in section 5 of this act, to a provisional elementary school certificate valid for four years Elementary in any school district in Ohio; provided...

...other States. "The diploma of any normal school, teachers' college, college, or university approved by the State commissioner of common schools shall...he or she has successfully passed the examination approved in section 5 of this act to a professional elementary-school certificate. * * * Provided,...