a Spanish Jesuit theologian and philosophical writer. Lossada was born at Quiroga, Asturias, Spain. He entered the Society of Jesus in 1698, and, after completing his studies, taught theology, Scripture, and philosophy at Salamanca, where he died. His first publication was the "Vida y virtudes del P.G. Dutari" (1720). One year later he published his "Institutiones dialecticae", commonly styled "Summulae". This book was an introduction to his "Cursus philosophici Regalis Collegii Salmanticensis, in tres partes divisus", which he published in 1724 (last edition, 10 vols., Barcelona, 1883). It discusses all the branches of philosophy.
