In order to estimate rightly the effects of the secularization of Trinity College, both upon the Protestants and the Roman Catholics of Ireland, it will be necessary to give a numerical view of the relative proportions of the different religions and professions among the Students of that College. Taking an average of the past ten years, there are 1200 Students on the books of Trinity College. Of these 1200 Students, 800 are in daily attendance upon lectures, and may be classified as follows:-- 1. Divinity Students, 160 2. Medical Students, 240 3. Law Students, 70 4. Engineering Students, 60 5. Civil Service of India, 30 6. Non-professional Students, 240 ---- Total, 800 In order to find the proportion of Roman Catholics,[1] I have taken, at random, five years from 1855 to 1859, during which 1378 Students entered Trinity College, of whom 80 were Roman Catholics, and 61 were Protestant Dissenters and Jews. We may, therefore, assume that the 1200 Students are distributed as follows:-- 1. English Church, 1077 2. Roman Catholic Church, 70 3. Protestant Dissenters, 53 ---- Total, 1200 The preceding figures give an average of six per cent. of Roman Catholic Students in Trinity College, and in no department of the College do they exceed ten per cent. Thus, in the Medical School, in which there is a larger proportion than in other professional schools, during the four years ending 1867, out of 300 Students matriculated in Medicine, exactly thirty were Roman Catholics, and three were Jews. Let us now examine briefly the effect of secularizing Trinity College upon the Protestant and Roman Catholic Students respectively.