[20] A tarrenus or tarrene in gold was equal to about thirty cents of our money. Money at that time had from ten to fifteen times the purchasing power that it has at the present time. An ordinary workman at this time in England received about four pence a day, which was just the price of a pair of shoes, while a fat goose could be bought for two and a half pence, a sheep for one shilling and two pence, a fat hog for three shillings, and a stall-fed ox for sixteen shillings (Act of Edward III. fixing prices). [21] The University of Perugia had already achieved a European reputation for its Law School, and this Papal document was evidently meant to maintain standards, and keep the new Medical School up to the best criteria of the times. The original Latin of this document, as well as of the Law of Frederick II., may be found in Walsh, "The Popes and Science," Fordham University Press, New York, 1908. They are quoted directly from the official collection of Papal Bulls. _IN THE SAME SERIES_ PASTEUR & AFTER PASTEUR By STEPHEN PAGET, F.R.C.S. HON. SECRETARY DEFENCE SOCIETY _Large Crown 8vo, cloth, with 8 fall-page illustrations_ (_By post 5/5_) PRICE 5/- NET (_By post 5/5_) "We heartily congratulate Mr. Paget on his book, which is deeply interesting and holds the attention from start to finish."--_Nature._ "There could be no better way of arousing an intelligent interest in the aims and methods of scientific medicine than the study of this book. We commend it to all intending to enter the profession as an excellent intellectual preparation for the work they will have to do."--_British Medical Journal._ THE EDINBURGH SCHOOL OF SURGERY BEFORE LISTER By ALEXANDER MILES, M.D., F.R.C.S. SURGEON TO THE ROYAL INFIRMARY, EDINBURGH _Crown 8vo, cloth, with 8 pages of illustrations_ (_By post 5/5_) PRICE 5/- NET (_By post 5/5_) "A most fascinating volume which should appeal to students of surgery who desire to know more of the history of their art.... We feel sure the book will score an instantaneous and well-merited success."--_Medical Times._ "Mr. Miles's account is admirably written, so much so that we felt sorry when we reached the last page, on which appears the word 'brilliant.' It is this same word 'brilliant' which might be applied to the authorship of this most interesting volume."--_Medical World._ "... a well-written and worthy contribution to the history of surgery."--_The Hospital._ "This unpretentious and extremely interesting little book ... a valuable record of the great school which it commemorates."--_Lancet._ _OTHER MEDICAL BOOKS_ The Edinburgh Medical Series TEXT-BOOKS FOR STUDENTS AND PRACTITIONERS