Before revision: Example: If the concentration of iron in an ore X is , and the "clarke of iron" is , then "the clarke of concentration of iron in ore X '' " is (dimensionless) References Footnotes Cited works C: Frank Wigglesworth Clarke of USGS and Henry Stephens Washington Based on 880 igneous rock samples.
After revision: Example: If the concentration of iron in an ore X is , and the "clarke of iron" is , then "the clarke of concentration of iron in ore X " is (dimensionless) References Footnotes Cited works C: Frank Wigglesworth Clarke of USGS and Henry Stephens Washington Based on 880 igneous rock samples.