(39) dG"/dp (D const) =v, dJ"/dv (0 const) = p. (40) And all the properties of the substance may be expressed in terms of G or J and their partial differential coefficients.
Since dJ=-4d9-pdv, we have also the relations dJ'/dv' = - p = dJ"/dv", at constant temperature.
Dj gives ~f between vowels (verger, v i r i d i a r u m), and c as, a terminal (written either ig or lx: goig, g a u d i u m mig, snitx, m e d i u in).
F" =S 0 0 - (n+1)cp+bp+B„ dG"/dO (p const) =0" = dJ"/dB (v const)..
Such interchanges are found as 1 for r, 6 (k, ch) for ~ (dj), final i for final e, a for e, a for o.