An award of compensation in respect of incapacity is based upon comparison of a worker's diminished earning capacity as a result of the injury on the one hand, with, on the other hand, what the worker could have earned in a relevant employment if he had not been affected by the injury which has brought about his incapacity. I agree with the opinion of the majority in the Full Court that the facts stated show that the incapacity of the worker to earn wages in the coal industry - whether £8 10s. or £7 11s. per week - existed, as a consequence of the attainment of the age of sixty years by the worker and of the provisions of the Pensions Act, from February 1942, i.e., before 19th November 1946. That incapacity (and it is the relevant incapacity) was therefore not the result of the pneumoconiosis. The Pensions Act had already made the worker 100 per cent incapable of earning any wages in the coal mining industry, and accordingly the pneumoconiosis did not, in the circumstances, produce any incapacity in relation to that industry. I agree with the following statement of Street J.: - "I think that with the statutory destruction of his right to work in that industry, there was also destroyed his right to claim compensation for a subsequent injury which would have diminished or destroyed his wage-earning capacity had he been permitted to remain in the industry" [1] . Accordingly, I am of opinion that the worker was not entitled to recover any compensation from the respondent company. Upon this view it is unnecessary to consider whether, for the purposes of ss. 9 and 11 of the Act, the "average weekly earnings" of the worker in the present case should be estimated in relation to a twelve months' period preceding 19th November 1946, in which case they would be nil, or whether they should be estimated in relation to a period of twelve months ending in February 1942.