A HISTORY OF SCIENCE 



1842-1862. On Plants, edited by Slackhouse, Oxford, 

 1814. flepi <pvr6i)v alniav, On the Causes of Plants. This 

 was originally in 8 books, of which 6 are now existant. 

 Bibliog. vid. History of Plants. 



II. PERIOD COVERED BY VOLUME II. 



ALBATEGNIUS, MOHAMMED BEN JABIR. See vol. ii., p. 15. 



The original MS. of his principal work, Zidje Sabi, is 

 in the Vatican. A Latin translation was first published 

 by Plato Tiburtinus at Nuremberg, in 1537, under the 

 title De scientia stellarum. Various reprints of this have 

 been made. 

 ALBERTUS MAGNUS. See vol. ii., p. 127. 



Philosophies Naturalis Isagoge, Vienna, 1514. 

 ALHAZEN (full name, Abu Ali al-Hasan Ibn Alhasan). See 

 vol. ii., p. 18. 



Only two of his works have been printed, his Treatise on 

 Twilight and his Thesaurus o plicae, these being available 

 in Michael Casiri's Bibliotheca Arabico-Hispana Escuri- 

 alensis, 2 vols., Madrid, 1760-1770. 



BACON, FRANCIS. See vol. ii., p. 192. 



Novum Organum was published in London, 1620. The 

 Letters and Life of Lord Bacon, in 7 vols., by James 

 Spedding, appeared in 1862-1874. 



BACON, ROGER. See vol. ii., p. 44. 



Only an approximate estimate of the number of 

 Bacon's works can be given even now, although an 

 infinite amount of time and labor has been spent in col- 

 lecting them. His great work is the Opus ma jus, "the 

 Encyclopaedia and the Organum of the Thirteenth 

 Century." A partial list of some of his other works is 

 the following: Speculum alchemia, 1541 (trans, into 

 English); De mtrabili potestate artis et naturae, 1542 

 (trans, into English, 1659); Libellus de retardanis se- 

 necluiis accidentibus, 1590 (trans, as "The Cure of Old 

 Age," 1683); and Sanioris medicine Magistri d. Rogeri 

 Baconis Anglici de arte chymice scripta, 1603. 

 248 



