Nomograph temperature correction

U. Above 300 K, the heat capacity values are derived from a nomograph constructed by Rharbanda (6) based on experimental data (273-573 K). These temperature-dependent values are corrected to current atomic weights and converted from IPTS-48 to IPTS-68. Of the five hydrates of sulfuric acid (mono-, di-, tri-, tetra-, and hemihexa-) only in the case of the trihydrate is there a serious discrepancy in the heat capacity values (at ambient temperature) between Giauque et al. (6) and Rharbanda (]7). Assuming... 

The true instrumental method of analysis requires no reduction of data to normal pressure and temperature, no corrections or computations, no reference to correction factors nor interpolation on nomographic charts. It indicates the desired information directly on a dial or counter and if it is desired to have the answer printed on paper—that can be had for the asking. (Muller, 1947, pp. 23A-24A)... 

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