Note 21 — Chapter II · OSMOTIC PRESSURE AND THE THEORY OF SOLUTION I
Reading edition
The exact relations are discussed in van 't Hoff's Lectures on Physical Chemistry, Part II, pp. 42–59, Nernst's Theoretical Chemistry (1904), pp. 142 and 148, and H. C. Jones's The Elements of Physical Chemistry (1909), pp. 252, 271.