Document yryq12bDj6EB77VN65BRawR3d

_________________ ________ _______________________________________ 209.1 say pathologically described, over a hundred years ago in Scotland, and the disease then appears in British history to have disappeared. The experts said that there was no such thing now in about 1910, as the old miners asthma, the black: lung of miners; it had disappeared and that was j i | I ^ attributed to improved working conditions in the mines. But them, as radiography began to be more widely applied in Great Britain, it was found that miners showed X-rays that looked very like silicosis and then the path ologists got Interested again, and particularly in South Wales, described the sort of pathological picture that. Doctor Vorwald has described to you, and In 1929, miners w were admitted to Workmen's Compensation for the first time i i and some official figures as to the Drevalence of this con-' I dition became available. j And here we start actually going through various legal delays, the first cases certified were in 1931* Tbeaei are years along here (indicating on s lide) and -the r.eight j of the column represents numbers of men officially certi- -. I fled with the disease in each year from 1931 to 191+7 Therei is a gap there because the legislation changed, and then j there is *i+8# *i+9 '50. This Is South Wales where about just over a hundred thousand miners work, and this is :ne whole rest of Great Britain where seven ty thousand -- six to seven hundred thousand, I should say, work; seven - SEVENTH SARANAC -0244