Book ReviewsScientific Books L'unité de la Science By R. D. Carmichael See allHide authors and affiliations Science 23 Dec 1921:Vol. 54, Issue 1408, pp. 631-634DOI: 10.1126/science.54.1408.631-a R. D. Carmichael Find this author on Google Scholar Find this author on PubMed Search for this author on this site Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears above.