On Generation and Corruption is a treatise by Aristotle (384-322 BC), the Greek philosopher whose work shaped Western thought for two thousand years. In it he examines how things come to be and pass away, the changing and mixing of the elements, and the nature of physical transformation, part of his vast investigation of the natural world. The work was central to medieval and Renaissance science. It remains a foundational text of natural philosophy. Free PDF download available on BDeBooks.