In a special inquiry into the physical effects of work upon 600 boys of school age made in 1905 by Dr. Charles J. Thomas, assistant health officer to the London County Council's education department, it was found that many of the children suffered from nervous strain, heart disease and deformities as a result of prolonged labor. Of the 600 boys, 134 were shop boys, 63 were milk boys, 87 were newsboys and the others were scattered among various employments. It was found that work during the dinner hour and also the long work-day on Saturday were particularly harmful. As to fatigue among the newsboys, of those working 20 hours or less, 60 per cent were affected; of those working between 20 and 30 hours, 70 per cent; while of those working more than 30 hours per week, 91 per cent showed fatigue. As to anæmia, among the newsboys, of those working 20 hours or less it appeared among only 19 per cent; but of those working 20 to 30 hours, 30 per cent showed it; while of those working over 30 hours per week, 73 per cent were afflicted in this way. As to nerve strain, of those working 20 hours or less 16 per cent were suffering from it; of those working 20 to 30 hours, 35 per cent; while of those working over 30 hours, 37 per cent showed nerve strain. As to deformities, none were noted among boys working less than 20 hours a week, but 10 per cent of those working 20 to 30 hours or more were found to be afflicted. All elementary schoolboys showed deformities to the extent of 8 per cent, but of those engaged in different kinds of work from 20 to 30 hours a week, 21 per cent showed deformities. Flatfoot was found to be the chief deformity produced by newspaper selling, this being caused by the boys' having to be on their feet too much.[101] One of the most decisive blows delivered against street work by children in Great Britain was the statement of Thomas Burke of the Liverpool City Council, a son of working people, who had lived in a crowded city street for twenty years, had attended a public elementary school until fourteen years of age, where the number of child street traders was very large, and had become convinced that "work after school hours was decidedly injurious to health and character." Referring to the material condition of his street-trading acquaintances, he said: "Almost all the boys sent out to work after school hours from the school referred to have failed in the battle of life. Not one is a member of any of the regular trades, while all who were sent to trade in the streets have gone down to the depths of social misery if not degradation ... a great proportion of those who did not work after school hours, or frequent the streets as newspaper sellers, occupy respectable positions in the city."[102]