Slide showing bar chart displaying 'Comparison of total numbers with ability and numbers who have opportunity of higher education in the two groups of free and fee-paying pupils respectively.' Slide shows black and white bar chart displaying 'Comparison of total numbers with ability and numbers who have opportunity of higher education in the two groups of free and fee-paying pupils respectively.' There are four sets of bars on the chart corresponding to the key: '[white block] Ability'; and '[black shaded block] Opportunity.' The first two sets are entitled 'I.Q. 130' showing free and fee-paying pupils. The second two sets are entitled 'I.B. 130' showing free and fee-paying pupils. Title below image reads: 'Comparison of total numbers with ability and numbers who have opportunity of higher education in the two groups of free and fee-paying pupils respectively. (based on data of Table XIV). It should be noted that Figs. 6 and 7 are not drawn to the same scale.' Late 19th to early 20th century