Apparent onset of coal-workers' pneumoconiosis after leaving the mines.

Campbell-Orr, H. (I954). Trans. Ophthal. Soc. U.K., 74, 367. Paris v. Stepney Borough Council (I95I). I. All E.R. 42. The answer to the second question is increasingly likely to be 'yes' towards each end of the scale. Loss of binocular visual acuity is a greater loss in a man with poor eyesight because visual acuity falls from a higher level using both eyes to a lower level using one, even though the visual acuity in each eye singly was lower. Assuming the worst, in that when visual acuity is lost it will be lost from the better eye, any person with 6/i8 or worse visual acuity (i.e., corrected vision) in either eye should be regarded as being in need of special consideration, which may indicate extra protection from further damage to his eyesight where a significant hazard exists. In those employees who do not need