The Corpus Aristotelicum is the collection of Aristotle's works that have survived from antiquity through Medieval manuscript transmission. These texts, as opposed to Aristotle's lost works, are technical philosophical treatises from within Aristotle's school. Reference to them is made according to the organization of Immanuel Bekker's nineteenth-century edition, which in turn is based on ancient classifications of these works. The Organon is the standard collection of Aristotle's six works on logic. The name Organon was given by Aristotle's followers, the Peripatetics.