Public Domain Mark
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
On the new method of determining the longitude by the culmination of the moon and stars being a paper read before the Astronomical society of London. To which are now added an appendix, and a list of stars, applicable to the purpose, for the year 1825 / By Francis Baily. Public Domain Mark. Source: Wellcome Collection.