ill University of California Berkeley SANITATION IN PANAMA Concreted Ditch. Ancon. jurm SANITATION PANAMA IN BY WILLIAM CRAWFORD GORGAS CHIEF SANITARY OFFICER, PANAMA CANAL, SURGEON GENERAL, U. 8. UAJOK GENERAL, U. 8. A. ILLUSTRATED NEW YORK AND LONDON APPLETON AND COMPANY D. 1915 COPYRIGHT, 1915, BY D. APPLETON AND COMPANY Printed in the United States ofAmerica