Document LgzwOX3eqkVVv9vVMQaxp2Xa7

OFFICE OF THE DIRECTOR GENERAL OF PUBLIC HEALTH. 93 MACQUARIE STREET, SYDNEY, 23rd November, 1934* LJH. Dr. K. Fairley, Francis House, 107 Collins Street, MELBOURNE. VIC. Dear Dr. Fairley, Dr. Taylor has just completed the lead in urine determinations for your three Tetra-ethyl Lead workers, and they do not appear to have inhaled or swallowed much of the ethyl. Moffatt and Pryke show .02 mgm. per litre, and Allen .06. But compare Allen with 400 basophilic cells; is this chance or a very delicate test? Yours sincerely