Richard Adolf Jigmondi
Richard Adolf Jigmondi is an Austrian chemist. Born in Vienna, he studied at the University of Munich and the University of Munich. In 1903 he invented an ultrafine microscope to examine colloidal particles, and he was awarded the Nobel Prize for Chemistry in 1925, contributing to colloid chemistry by studying the preparation and properties of various colloid solutions including gold colloids. There is "colloid chemistry" in his book.