that, for comfort, steaming should cease when the hygrometer wet bulb reached 72.5%. This became law under the Cotton Cloth Factories Act of 1929. Despite previous beliefs, the report concluded that there was no evidence that humid sheds caused more harm to health than dry sheds and that to abolish steaming would hinder trade by increasing manufacturing costs.` See also Kissing the shuttle Mule spinners' cancer Notes References Bibliography Additional sources The National Archives (United Kingdom): Cotton Cloth Factories Act 1889 Retrieved 6 June 2014 The National Archives (United Kingdom): Cotton Cloth Factories Act 1911 Retrieved 6 June 2014 Google Books: Wharton's Concise Dictionary by Ar Lakshmanan and John Jane Smith Wharton Cotton Cloth Factories Act 1929 Retrieved 6 June 2014 Google Books: Departmental Committee on Humidity and Ventilation in Cotton Weaving Sheds by Sir Hamilton Freer-Smith (H.M. Stationery Office, 1909) Retrieved 6 June 2014 Cotton industry in England Weaving History of Lancashire United Kingdom labour law