Lummer, O(tto) (Richard), (1860-1925). “Le Rayonnement des Corps Noirs”. Report presente au Congres International de Physique reuni a Paris en 1900, sous les auspices de la Societe francaise de Physique.
Published in Paris by Gauthier-Villars, 1900, pp (41)-99. Original wrappers. Good copy. $95
This was a paper given by Lummer following two in this area published with Ernst Pringsheim in 1899. (See The Intellectual Mastery of Nature. Theoretical Physics from Ohm to Einstein ...by Christa Jungnickel, Russell McCormmach, pg 259.)
“Otto Richard Lummer was a German physicist and researcher. He was born in the city of Gera, Germany. With Leon Arons, Lummer helped to design and build the Arons–Lummer mercury-vapor lamp. Lummer primarily worked in the field of optics and thermal radiation. Lummer’s findings, along with others, on black body radiators led Max Planck to reconcile his earlier Planck’s law of black-body radiation by introducing the quantum hypothesis in 1900.”–Wiki
Lummer was also early on in his career an assistant to Hermann von Helmholtz, who had a life-long influence on him.