Originally published in the 19th century, this authoritative text explores the laws, duties, and regulations governing lodges, Grand Lodges, Masonic trials, membership qualifications, officer responsibilities, and the ancient landmarks of the Craft. The Principles of Masonic Law by renowned Freemason Albert Mackey is an essential guide to the legal foundations, constitutional structure, and internal governance of Freemasonry. It remains a foundational legal reference for Masons, scholars of fraternal orders, and those studying Masonic jurisprudence. Written by one of the most respected Masonic historians, this book provides clear explanations of Masonic constitutions, rules of order, and institutional structure.