New forms of concretions
By: by Henry Windsor Nichols -- ; Oliver Cummings Farrington --
Contributors: Farrington, Oliver C. 1864-1933.; Field Columbian Museum.
Series: Fieldiana -- v. 3, no. 3; Field Columbian Museum. Publication -- 111. -- Geological series -- Vol. III, no. 3; Publication (Field Columbian Museum) -- 111; Publication (Field Columbian Museum) -- v. 3, no. 3
Publisher: Field Columbian Museum
Published: 1906
Place of publication: Chicago
Subjects: Concretions.