Transcriber’s Notes Text printed in italics has been transcribed _between underscores_, bold face printed text =between equal signs=. Small capitals have been replaced with ALL CAPITALS. Literature references are numbered and listed per chapter at the end of the chapter, footnotes (indicated by letters in square brackets) will be found directly underneath the paragraph, table or illustration to which they refer. More Transcriber’s Notes may be found at the end of this text. LEAD POISONING AND LEAD ABSORPTION INTERNATIONAL MEDICAL MONOGRAPHS _General Editors_ { LEONARD HILL, M.B., F.R.S. { WILLIAM BULLOCH, M.D. _THE VOLUMES ALREADY PUBLISHED OR IN PREPARATION ARE:_ =THE MECHANICAL FACTORS OF DIGESTION.= By WALTER B. CANNON, A.M., M.D., George Higginson Professor of Physiology, Harvard University. [_Ready._ =SYPHILIS: FROM THE MODERN STANDPOINT.= By JAMES MACINTOSH, M.D., Grocers’ Research Scholar; and PAUL FILDES, M.D., B.C., Assistant Bacteriologist to the London Hospital. [_Ready._ =BLOOD-VESSEL SURGERY AND ITS APPLICATIONS.= By CHARLES CLAUDE GUTHRIE, M.D., Ph.D., Professor of Physiology and Pharmacology, University of Pittsburgh, etc. [_Ready._ =CAISSON SICKNESS AND THE PHYSIOLOGY OF WORK in Compressed Air.= By LEONARD HILL, M.B., F.R.S., Lecturer on Physiology, London Hospital. [_Ready._ =LEAD POISONING AND LEAD ABSORPTION.= By THOMAS LEGGE, M.D., D.P.H., H.M. Medical Inspector of Factories, etc.; and KENNETH W. GOADBY, D.P.H., Pathologist and Lecturer on Bacteriology, National Dental Hospital. =THE PROTEIN ELEMENT IN NUTRITION.= By Major D. MCCAY, M.B., B.Ch., B.A.O., M.R.C.P., I.M.S., Professor of Physiology, Medical College, Calcutta, etc. =SHOCK: The Pathological Physiology of Some Modes of Dying.= By YANDELL HENDERSON, Ph.D., Professor of Physiology, Yale University. =THE CARRIER PROBLEM IN INFECTIOUS DISEASE.= By J. C. LEDINGHAM, D.Sc., M.B., M.A., Chief Bacteriologist, Lister Institute of Preventive Medicine, London; and J. A. ARKWRIGHT, M.A., M.D., M.R.C.P., Lister Institute of Preventive Medicine, London. =DIABETES.= By J. J. MACLEOD, Professor of Physiology, Western Reserve Medical College, Cleveland, U.S.A. _A Descriptive Circular of the Series will be sent free on application to the Publishers:_ LONDON: EDWARD ARNOLD NEW YORK: LONGMANS, GREEN & CO. INTERNATIONAL MEDICAL MONOGRAPHS _General Editors_ { LEONARD HILL, M.B., F.R.S. { WILLIAM BULLOCH, M.D. LEAD POISONING AND LEAD ABSORPTION THE SYMPTOMS, PATHOLOGY AND PREVENTION, WITH SPECIAL REFERENCE TO THEIR INDUSTRIAL ORIGIN AND AN ACCOUNT OF THE PRINCIPAL PROCESSES INVOLVING RISK BY THOMAS M. LEGGE, M.D. OXON., D.P.H. CANTAB. H.M. MEDICAL INSPECTOR OF FACTORIES; LECTURER ON FACTORY HYGIENE UNIVERSITY OF MANCHESTER AND KENNETH W. GOADBY, M.R.C.S., D.P.H. CANTAB.