)an. 5 — “ How Gold occurs in Nature.” 
H. W. Nichols. Curator ol' Economic Geology, Field 
Columbian Museum. 
Jan. 12 — “The Ancient Volcanoes of the Yellowstone.” 
Prof. J. P. Idings. Professor of Petrology, University of 
Chicago. 
Jan 19 — “ The Extraction of Iron from its Ores.” 
H. W. Nichols. Curator of Economic Geology. 
Jan. 26 — “ The History of Gold Mining in the United States ” 
Prof. R. A. F. Penrose. Professor of Economic Geology, 
University of Chicago. 
SECOND LECTURE COURSE. 
Feb. 2 — “ Pre-Columbian Man in Ohio.” 
Warren K. Moorehead. Curator of Archaeology in the 
Ohio State University, and Exploreron the Exposition staff. 
Feb. 9 — “Life Among the Cliff Dwellers.” 
Warren K. Moorehead. 
Feb. 16 — “The Story of a Birch Tree.” 
Dr. Selim H. Peabody. Chief of Exposition Depart- 
ment of Liberal Arts. 
Feb. 23—“ The Other Half of the Discovery.” 
Edward Morris Brigham. Formerly connected with 
the Smithsonian Institution as Collector and Explorer. 
March 2 — “Theories of Evolution.” 
Prof. John M. Coulter. President of Lake Forest Uni- 
versity. 
March 9—“ Giants of Other Days as Revealed in the Zoology of 
the Past.” Part i— “ Reptiles.” 
Prof. D.G. Elliot, F. R. S. E. Curator of Zoology, Field 
Columbian Museum. 
March 16— “Giants of Other Days as Revealed in the Zoology of 
the Past.’ Part 2 — “Birds and Mammals.” 
Prof. D. G. Elliot, Curator of Zoology. 
March 23 — “The Fishes of Illinois and Adjacent Regions.” 
Dr. O. P. Hay. Assistant Curator of Ichthyology, Field 
Columbian Museum. 
March 30— “Cats and the Lands they Inhabit.” 
Prof. D. G. Elliot. Curator of Zoology. 
