Cavendish Laboratory : End of an 1857 letter from Faraday to Maxwell
Cavendish Laboratory
<p style='text-align: justify;'>A response to the letter from Maxwell of 9 November 1857 (P.M. Harman, 'The scientific letters and papers of J.C. Maxwell', CUP 1990, vol.1 pp. 548-552), in which Maxwell proposed a clearer distinction be drawn between conservation of energy and conservation of force. Maxwell also explained why Faraday's idea of field lines can be applied to gravity and proposing the use of a mathematical formalism for further investigation of the phenomenon. This photograph of the manuscript was probably taken on the occasion of the Maxwell Centenary Celebration in 1931.</p>