Heinrich Ries

Heinrich Ries
Born	(1871-04-30)April 30, 1871 Brooklyn, New York
Died	April 11, 1951(1951-04-11) (aged 79) Ithaca, New York
Nationality	American
Citizenship	American
Alma mater	Columbia University, University of Berlin
Scientific career
Fields	Economic geology, Geology
Institutions	Cornell University

Heinrich Ries, Ph.D. (April 30, 1871 – April 11, 1951) was an American economic geologist, born in Brooklyn, New York, and educated at Columbia University and at the University of Berlin. He was employed principally at Cornell University, initially as an instructor (1898–1902), as an assistant professor (1902–1905), as professor, and as head of the geological department (1915- ). Professor Ries made numerous reports on clay published by the United States Geological Survey, the New York State Geological Survey and the Canadian Geological Survey.

His first wife, Mrs. Millie Timmerman Ries, died in 1942. He remarried in 1948, but his second wife, Mrs. Adelyn Halsy Gregg Ries, died early in 1950. He had two sons, Professor Victor H. Reis of Ohio State University, and Professor Donald T. Ries of Illinois State Normal University.

Publications

• Clay Deposits and Clay Industry in North Carolina: A Preliminary Report (1897)
• Clays and Shales of Michigan: Their Properties and Uses (1900)
• Economic Geology of the United States (1905; third edition, revised, 1911)
• Clays: Their Occurrence, Properties, and Uses (1906, second edition, 1908)
• Clays of Texas (1908)
• History of Clay-Working Industry in the United States (1909), with Henry Leighton
• Building Stones and Clay Products: A Handbook for Architects (1912)
• Engineering Geology (1914; second edition, revised, 1915)

External links

• Works by or about Heinrich Ries at Internet Archive
• Guide to the Heinrich Ries Papers, 1889-1951 - Cornell University Library