1. The equation for the global transform given on p. 634 was printed incorrectly. The correct version is as follows:  
    log(k)=[AB×log(Class)]+[CD×log(Class)]=log(ϕip)

    where

    • k = permeability,

    • Class = rock-fabric petrophysical class ranging from 0.5 to 4,

    • A = 9.7982; B = 12.0838; C = 8.6711; D = 8.2965,

    • ϕip = fractional interparticle porosity.

  2. In Figure 12b on p. 628, the bar scale should read 0 to 100 μm NOT 0 to 1 μm.