Avesta other general. The following categorization is as described by Jean Kellens (see bibliography, below). The "Yasna" (from "yazišn" "worship, oblations", cognate with Sanskrit "yajña"), is the primary liturgical collection, named after the ceremony at which it is recited. It consists of 72 sections called the "Ha-iti" or "Ha". The 72 threads of lamb's wool in the "Kushti", the sacred thread worn by Zoroastrians, represent these sections. The central portion of the Yasna is the "Gathas", the oldest and most sacred portion of the Avesta, believed to have been composed by Zarathushtra (Zoroaster) himself. The "Gathas" are structurally interrupted by the
The Economic Writings of Sir William Petty The Economic Writings of Sir William Petty The Economic Writings of Sir William Petty is a book with texts, written by William Petty (1623-1687), and published in 1899 by Charles Henry Hull (1864-1936), in two volumes. The "Economic Writings" were published together with an introduction about the life and work of William Petty, and did also contain "Natural and Political Observations upon the Bills of Mortality," by John Graunt. This edition of the economic texts of William Petty, the scientist, who is often been called the founder of political economy, is used as a reference work ever since its publication.