Variation among variables, equalization

Results of the lattice constants and density measurements are given in Table III their variations as a function of composition are shown in Figures 8 and 9. At the present time, two crystal structures only slightly different from one another have been proposed (4, 9). They differ only in the origin of z, the distances between planes of titanium and of sulfur, and in the distribution of titanium among the available sites (Figure 10). In the present case, density measurements do not permit making a decision they simply show that lattice defects are related to the variable number of titanium atoms per unit cell, and that the number of sulfur atoms per unit cell is constant and equal to 4. 

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