Cavendish Laboratory : Letter from Maxwell to Tait, 14 July 1868
Cavendish Laboratory
<p style='text-align: justify;'>Tait's postulate was published in Proc. Roy. Soc. Edinb., 6 (1868): 309-11. The date is given in the form of a fraction of a year (0.534 = day 196 = July 14th). T.T' refers to 'Natural Philosophy' by Thomson (Lord Kelvin) and Tait. For more details see: P.M. Harman, 'The scientific letters and papers of James Clerk Maxwell', Vol.II, CUP 1995, p.389.</p>