24 Pa. Stat. § 1777
The requisites to entitle any school to the benefits of this act, or the one to which this is a supplement, as set forth in the sixth section thereof, are hereby altered in the following particulars, viz.: The pupils of the model school may or may not be from the immediate vicinity of the normal school with which it is connected, as in the discretion of the trustees thereof shall seem most expedient; that the cost of the tuition of all classes of students, whether admitted on common school district account, private account, or whether they are actual school teachers, shall be fixed by the trustees of the several schools; that the examination of students for graduation, if only one school shall be in recognized operation, shall be by the faculty thereof; if two schools shall be in operation, it shall be by the principals of both; if three, it shall be by the principals of all, or at least two of them; and when more than three shall be in operation, the examination shall never be conducted by less than three principals, to be designated as prescribed by the twelfth paragraph of the sixth section of said act, of whom the principal of the school whose students are to be examined shall be one: And provided, That these examinations shall in all cases be conducted in the presence of the superintendent of common schools and the county superintendents of the proper district, if they desire to attend, upon receiving due notice; that the certificate to graduates shall embrace such branches of learning, in addition to those of orthography, reading, writing, English grammar, geography and arithmetic, as shall be prescribed by the board of principals in accordance with the seventh paragraph of the sixth section of said act, or by the principal of the first school recognized, so long as only one shall be in operation; and the certificates shall be signed by all the examiners, if less, and by at least two-thirds of them, if more than three, and also by the whole faculty of the proper school, in every case.
24 P.S. § 1777