THIRTIETH ANNUAL REPORT OF THE STATE BOARD OF HEALTH OF MASSACHUSETTS. BOSTON: WRIGHT & POTTER PRINTING CO., STATE PRINTERS, 18 POST OFFICE SQUARE. CONTENTS. Experiments on the Purification of Sewage and Water at the Lawrence Experiment Sewage Purification of Cities and Towns in Massachusetts, 3. Report upon Food and Drug Inspection, . Report of Dr. C. P. Worcester, Analyst, Report of Prof. C. A. Goessmann, Analyst, . 4. Report on the Production and Use of Antitoxin, 5. Report on Diphtheria Cultures,. 6. Report on Examinations for Tuberculosis, 7. Report on Examinations for Malaria, 8. Statistical Summaries of Disease and Mortality, 9. Vital Statistics of Massachusetts for 1897, with a Life Table,. |