PROGRESS OF SANITARY SCIENCE By CHARLES McINTIRE, A.M., M.D., Lecturer on Sanitary Science, Lafayette College, Easton, Pa. · Triumphs and Wonders of the 19th Century: The True Mirror of a Phenomenal Era / A volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress