Briggs logarithm

Here In stands for natural logarithm (or Briggs logarithm). On a scientific calculator this is usually the In key. 

If the given constants are entered in the Nernst equation, the natural logarithm then converted to the Briggs logarithm, and the activities... 

The sound intensity in a medium, denoted S, is a dimensionless quantity that expresses the ratio of two sound powers, W, or sound pressures, P, or intensity levels, X and X , as a Napierian or Briggs logarithm difference ... 

Several authors have attempted to interpret the differences in adsorption behavior of different compounds within the same group of pesticides. Briggs (23) has studied the effect of changes in substituent groups in substituted phenylurea compounds and alkyl-N-phenyl carbamates on the partition of these compounds between solutions and soils in contact with solutions. He found a linear relationship between the logarithms of the partition coeflBcients and the Hammett constants and the Taft constants of the substituted phenylurea compounds. However, in alkyl-N-phenylcarbamates, linear relationships between the logarithms of the partition coefficients and the Hansch constants of the compounds are obtained. The Hansch constant (tt) is defined in the following way by Fujita et al. (24) ... 

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