The index has many references to both page numbers and footnote numbers, e.g. 24 n. (a single unnumbered footnote), 93 n. 3, 126 nn. 4, 5, (pages containing multiple footnotes), and also to numbered figures and plates. The original footnote numbering began afresh at 1. on each page, but in this transcription footnotes are numbered sequentially from the beginning of the book and the numbers no longer correspond to those shown in the index. Many of the illustrations have been moved from their original location to be closer to the relevant text discussion. Errors and inconsistencies: Punctuation anomalies have been corrected silently (e.g. missing periods, commas and semicolons, incorrect or missing quotation marks, unpaired parentheses). Unambiguous typographic errors such as the following, have been corrected silently: Lexico nder-->Lexicon der Aa-->As [a matter of fact] Chiru gie-->Chirurgie Weisbaden-->Wiesbaden but inconsistent spellings such as those below have not been altered: paniculi/panniculi paniculo/panniculo feçe/fece Literatur/Litteratur literae/litterae aligati/alligati cf./cp. dilatare/dillatare dilitano/dillitano diuidendo/dividendo judgement/judgment Inconsistent capitalisation of Fig. and Plate has been standardised, as has inconsistent spacing of expressions such as A.D. i.e. and § 6 (a paragraph number). * * * * * STUDIES IN THE HISTORY AND METHOD OF SCIENCE OXFORD UNIVERSITY PRESS LONDON EDINBURGH GLASGOW NEW YORK TORONTO MELBOURNE CAPE TOWN BOMBAY HUMPHREY MILFORD PUBLISHER TO THE UNIVERSITY [Illustration: WIESBADEN CODEX B, fo. 1 r Plate I. HILDEGARD RECEIVING THE LIGHT FROM HEAVEN] STUDIES IN THE HISTORY AND METHOD OF SCIENCE EDITED BY CHARLES SINGER OXFORD AT THE CLARENDON PRESS 1917 PRINTED IN ENGLAND AT THE OXFORD UNIVERSITY PRESS INTRODUCTION