Item 13 - Letter from John Herschel

3 pp

Calais - JH has told the printers to send WW the proofs of his article on light ['Treatise on Light', Encyclopaedia Metropolitana, 1827], and is very obliged to WW for undertaking the superintendence of the press in his absence. JH has been careful with the history: 'I do not want to take on myself a task so insidious as balancing the merits and settling or even stating the claims of men so jealous as Brewster and Biot and Arago'.