L. de (Louis) Launay

Born in Paris in 1860, Louis de Launay became one of France’s notable geologists and mining engineers. Sources consistently describe him as a specialist in mineral deposits, and his career included teaching at the École des mines in Paris as well as senior work in the French mining service.

He was not limited to one field. Biographical records also describe him as a speleologist and as a writer whose interests reached into biography, poetry, philosophy, and economics. That mix of technical expertise and literary range makes him stand out among scientific authors of his time.

De Launay died in Paris in 1938. Library and academy records show that his reputation rested both on his scientific work and on the breadth of his intellectual life, which gives his books a perspective shaped by travel, observation, and wide reading.