Fig. 5. The experimental specific volumes, ^'_l (asterisks) and _l (squares), of an unlimited clay layer including cracks in Bronswijk's approximation and corrected accounting for violation of Assumption 1, respectively; the experimental specific volume, _s (circles) of clay samples including cracks, and the specific volume (solid line) of a clay matrix without cracks, predicted from Chertkov (2000b)(2003) for the clay of the 0- to 30-cm depths of Sarid soil, Israel. The specific volumes ^'_l, _s, and are from Chertkov et al. (2004). The maximum standard deviations of all the experimental points are less than 0.01 to 0.02 cm³ g^–1. The inclined straight line is 1:1 theoretical one. Figures near the experimental points correspond to the measurement numbers in Table 1.