Document rpdBaqOB86dnqDjdZv47EJELJ

TANDJCNG PRIOR October 27th, 1939 JAYA T1-, . -,'r. t --.t r rli!TTY The Associated Ethyl Co. Ltd. 36S Collins Street EELBOURX C. l . Dear Sirs, Referring to your letter aCT./GB of Oct. 20th 1939 I wish to sport that owing to the fact that lead in tlieVrine is one of the first syiaptons of the poisoning, I had these tests<^aSjce\rXis As I have no laboratory at my disposal, I had the urine testefoaKa BataviX/itaboratory. ' In my letter of June 7ths a agreed that all additional ex pen os should be charged exttfa.'-v In my obdralon it is therefore quite regular tnat I have sent in the b ill,\ Xv \ O\ \^ In addition(J`0 above mentioned I quite agree that the urine test; need not be taken ever\y \\jire^<j\npnths; it is my opinion after the tests taken that once a year will be sufficient in the future. In case you think it unnecessary to take these yearly urine tests, I will leave these out of the examinations. Sincerely yours, OK E ' UA J u 1 (Signed) W. F. de PRIESTER Zee Boulevard 13 Tandj ong-Pri ok Java, D.E.I.