For those who are interested a search of the State Library of Victoria's
catalogue found the following works on the clay industry by Heinrich Ries
The clays and clay industry of New Jersey by Heinrich Ries and Henry B.
Kummel ; assisted by George N. Knapp.Trenton, N.J. : MacCrellish & Quigley,
1904.
Physical Description: 548p :
Notes: The five folded maps are in pocket.
Includes bibliography.
Ries, H 1912 Building stones and clay-products.
He is also listed as an author of works on engineering geology and clays.
Iain Stuart
Principal, Archaeology and Heritage Management
HLA-Envirosciences Pty. Ltd.