74 SMITHSONIAN MISCELLANEOUS COLLECTIONS [voL. 48 
Watt, Rosert. Bibliotheca Britannica; or a general index to 
British and foreign literature, 4 vols. Edinburgh, 1824. See vol. 
I, authors, sections 4590—460f, and vol. 3, subjects (no pagina- 
tion) article Halley, Edmund. 
