Figure 3 shows neutron total structure factors ^{35}F(k) and ^{nat}F(k) and the difference function Delta F(k) measured for NaCl at 1093 K compared to the x-ray total structure factor S_X(k) measured for NaCl at 1091~K. Also shown is the S_X(k) function measured for NaCl at 1083~K in the work of Ohno and Furukawa.