These lead to secondary fibrous growths in the walls of arteries and bronchi.

Letter dated 18 November 1949 to the Workmen's Inspector from the Inspector of Mines "you should go to the mine as soon as convenient and inform the manager that continued breaches of the Act are likely to lead to prosecution."

Agri cola (Plate I) made a thorough investigation into mining practices in Germany, which was then the leading country in the industry.

August September, 1949 A K0 MA TICS Better Things for Better ' T i v i ng -Mrw^ jm Aj Av ' ' ... thro fig h Chemistry txH&Si&ttltmi Now MARLATE tags him OUT There's no one perfect material to kill in sects today--without danger to humans or animals or crops.

FILE NAME: National Safety Council (NSC) DATE: 1944 Oct DOC#: NSC070 DOCUMENT DESCRIPTION: Excerpt - Transactions of the NSC - 33rd National Safety Congress r =*.r .. *. -- ^ .Iy i.*.

BROADCAST INFORMATION SERVICES, INC 5303 E t Evani Aw nu - Dn*r, Colorarlo 80732 (303 ) 753-0043 25 E t F r lic o A w n u * - St.

The changes were depen dent on the length of exposure, and varied from slight mononuclear infiltration to intense mononuclear interstitial infiltration with many dust-laden cells, and finally to consolidation, including haemorrhagic areas, leading to complete disorganiza tion of the lung structure.

FILE NAME Kent KNT DATE 1940 DOC KNT107 DOCUMENT DESCRIPTION Journal Article - Does Chronic Irritation Cause Primary Carcinoma of the Human Lung - Archives of Pathology CCT YT ea DR SESE ET IEICE TERE ATT EO MATE TT ge ett Seg Hee 942- 43 942--43 942-43 942-43 942--43 942-43 942-43 942-43 942-43 TEE |g ARCHIVES OF PATHOLOGY ad 5 , f 5 EDITORIAL BOARD : !

FILE NAME: Smoking (SMOK) DATE: 1940 DOC#: SMOK002 DOCUMENT DESCRIPTION: Journal Article - Does Chronic Irritation Cause Primary Carcinoma of the Human Lung?

FILE NAME: Caterpillar (CAT) DATE: 1946-1952 DOC#: CAT038 DOCUMENT DESCRIPTION: IHF Membership Card [Pg. 31] (F or me r ly-,Armstrong Paint & Varnish Works, Inc. ) ARMSTRONG CHEMCON, INC. 1330 S.

FILE NAME: German Articles - Some with English Translation (GER) DATE: 1943 DOC#: GER059 DOCUMENT DESCRIPTION: Report by H.W.

FO R M A TIO N The American Industrial Hygiene Associate was formed in 1939 by leading industrial hygienis as a result of heed for an association dewfced e: clusiveiy to . industrial hygiene by .the rapidly ii creasing number of full-time industrial hygienic and other concerned with problems o f induatrii hygiene.

PLAINTIFFS EXHIBIT Ql'byi.QCN I 85% MAGNESIA INSULATION MANUAL Published by THE MAGNESIA INSULATION MANUFACTURERS ASSOCIATION Washington, D.

The group consisting of between 40 and 124 men had an incidence of pneumonia which varied from 1,500 to 6,300 per 100,000 in the period 1938 to 1945 compared with an average of 73 for the same period amongst male members of Boots Health Insurance Society pharyngeal catarrh and attacks of bronchitis were frequent the latter sometimes being associated with a spasmodic element The symptoms however always subsided after removal from exposure The pneu- monia which occurred in the workers was not different clinically from that which may develop in any individual and Davies illustrated his paper with radiographs showing consolidation in the upper lobe which resolved in a period of nine weeks He suggested however that the fever and general condition of the patient responded more slowly than usual to sulphonamides No permanent pulmonary changes were observed in the men either on clinical or on radiographic examination Animal experiments in which mice were exposed to manganese dust were complicated by the obvious general toxic effect of the manganese but the histo- logical effects on the lungs were uniform and striking The changes were dependent on the length of exposure and varied from slight mononuclear infiltration to intense mononuclear interstitial infiltration with many laden cells and finally to consolidation including haemorrhagic areas leading to complete disorganization of the lung structure The changes were most marked around the bronchi and the cells lining the bronchi were swollen and had undergone a hydropic change Davies thinks the manganese has a direct influence on the cells of the bronchial and alveolar epithelium The presence of dust cells even though few suggests that the dust is phagocytosed but it is probable that after absorption the phagocytic cells are killed Either before or after absorption manganese appears to have a specific action causing intense mononuclear proliferation and infiltration and sufficient to cause consolidation of the lung with necrosis and haemorrhage G Downloaded from thorax.bmj.com on July 14 2014 - Published by group.bmj com 94 KENNETH M.

TRANSACTIONS / V 32nd NATIONAL SAFETY CONGRESS Volume II Suit and Highway Traffic.