Biodiversity Heritage Library, including numerous books and scientific journals joined within archive.org project, now provides full-text taxon search uses taxonomic intelligence tools, including TaxonFinder developed by uBio.org, to locate, verify, and record scientific names located within the text of each digitized page. Note: The text used for this identification is uncorrected OCR, so may not include all results expected or visible in the page. http://www.biodiversitylibrary.org
it is a very useful tool!