Document ypE9vrwvbNqGEN8ke8y0Kza3E

FILE NAME Colonial Sugar Refinery CSR DATE 1951 Dec 10 DOC CSR165 DOCUMENT DESCRIPTION Govt Memo Stating it Takes 5-10 Years on Average for Asbestosis to Develop though May Occur Sooner 4. PHD.618 . 67 LH 10th December 1951 THE UNDER SECRETARY FOR MINES memorandum of the 25th With reference to your the enclosed October 1951. concerning asbestosis Alan comments have beeTn ubperrecpualroesdisbyConDtrro.lControl Branch for your Director of the information , LINLEY HENZELL HEALTH . COMMISSIONER Enclos.1 PLAINTIFF'S EXHIBIT Bayon e PENGAD 11031900 3191003190 PENGAD -2- taphragm and a felted or porcupine appearance at the periphery of the cardiac silhouette the last caused by the pleuroperi- cardial adhesions increase in time The onset of the disease is insidious with gradual in cough expectoration dyspnea loss of weight and inability to work The physical examination is not NB { revealing Wood and Gloyne draw attention to a peculiar earthy complexion of the face and a slight violet tinge in the ' cheeks and lips of some individuals Occasionally asbestos corns occur in the skin of the hands caused by the penetration of asbestos fibres into the superficial epidermis It takes on the average develop between five to ten years for asbestosis to develop although it may occur in as short a period as two years where working conditions are bad Whether the disease can progress after contact is broken with asbestos dust is still unsettled Death results from tuberculous or nontuberculous infection congestive heart disease or other intercurrent diseases The measures for the prevention of silicosis apply also to asbestosis ThankThainknin * Reference DIRECTOR : TUBERCULOSIS CONTROL BRANCH Diseases of the Chest - Rubin ~ . System Dust and its Effects on the Respiratory - Gill . GE 16.11.51