These certify that I have known Mr. Wm. B. Mackay for upwards of thirteen years, during which he taught the two principal schools connected with my congregation—one for nine years, the other for four. I have thus had many opportunities of know- page 4 ing, and have much pleasure in testifying, that Mr. Mackay's conduct has been correct and exemplary; that his manner of conciliating the affections of his pupils, and of securing their obedience and proficiency, was most successful; and that his attainments (having given four sessions' attendance at the Universities, and last year having secured a Government certificate of merit) are of a high order; and that his experience and past success warrant the expectation which I entertain that he will soon approve himself, to any parties who may secure his services, as a kind and efficient teacher.