Produced by Don Kostuch [Transcriber's notes] This is derived from these copies on the Internet Archive: http://www.archive.org/details/cu31924029759630 (1920) http://www.archive.org/details/cu31924014712875 (1907) The two editions are combined because of missing pages in one and missing images in the other. Page numbers in this book are indicated by numbers enclosed in curly braces, e.g. {99}. They have been located where page breaks occurred in the original book. Obvious spelling errors have been corrected but "inventive" and inconsistent spelling is left unchanged. [End Transcriber's notes] BY THE SAME AUTHOR FORDHAM UNIVERSITY PRESS SERIES MAKERS OF MODERN MEDICINE Lives of the men to whom nineteenth century medical science owes most. Second Edition. New York, 1910. $3.00 net. THE POPES AND SCIENCE The story of Papal patronage of the sciences and especially medicine. 45th thousand. New York, 1911. $3.00 net. MAKERS OF ELECTRICITY Lives of the men to whom important advances in electricity are due. In collaboration with Brother Potamian, F. S. C, Sc.D. (London), Professor of Physics at Manhattan College. New York, 1909. $2.50 net. EDUCATION, HOW OLD THE NEW Addresses in the history of education on various occasions. 3rd thousand. New York, 1911. $2.50 net. OLD-TIME MAKERS OF MEDICINE The story of the students and teachers of the sciences related to medicine during the Middle Ages. New York, 1911, $2.50 net. MODERN PROGRESS AND HISTORY. Academic addresses on how old the new is in Education, Medicine, Dentistry, Politics, etc. New York, 1912. $2.50 act. THE CENTURY OF COLUMBUS The story of the Renaissance $3.50 net. THE DOLPHIN PRESS SERIES CATHOLIC CHURCHMEN IN SCIENCE First, second and third series, each $1.00 net. PSYCHOTHERAPY Lectures on The Influence of the Mind on the Body delivered at Fordham University School of Medicine. Appletons, New York, 1912. $6.50 net. {i} {ii} [Illustration] LE BEAU DIEU (AMIENS) {iii} THE THIRTEENTH Greatest of Centuries BY JAMES J. WALSH, K.C.St.G., M.D., Ph.D., LL.D, LITT. D. (Georgetown), Sc.D. (Notre Dame) MEDICAL DIRECTOR, SCHOOL OF SOCIOLOGY, FORDHAM UNIVERSITY; PROFESSOR OF PHYSIOLOGICAL PSYCHOLOGY AT CATHEDRAL COLLEGE, NEW YORK; LECTURER IN PSYCHOLOGY, MARYWOOD COLLEGE, SCRANTON AND ST. MARY'S COLLEGE, PLAINFIELD; TRUSTEE OF THE CATHOLIC SUMMER SCHOOL OF AMERICA; MEMBER OF THE NEW YORK ACADEMY OF MEDICINE, OF THE GERMAN AND FRENCH AND ITALIAN SOCIETIES OF THE HISTORY OF MEDICINE, A.M.A., A.A.A.S., ETC. _Popular Edition_ _ (Sixtieth Thousand)_ CATHOLIC SUMMER SCHOOL PRESS New York, 1920 {iv} _ Copyright 1907_ James J. Walsh Set up and stereotyped 1907 (first edition 2,000) Reprinted with Appendix 1909 Georgetown edition enlarged and extra illustrated 1910 Fourth edition reprinted with additions (6th thousand) 1912 Fifth edition, Knights of Columbus, 50,000, 1912-1913. Made by THE SUPERIOR PRINTING CO AKRON, OHIO {v}