Letter from George Howard Darwin, to John William Strutt, 3rd Baron Rayleigh, regarding a paper 'On the straining of the Earth resulting from secular cooling' by Charles Davison Cannot see the question between himself and William Thomson, 1st Baron Kelvin. The question is the theory of whether a cooling Earth would crack, and how the cracks would be filled. Suggests the best judge would be a physicist, such as the recipient [John William Strutt, 3rd Baron Rayleigh], Joseph John Thomson, John Henry Poynting or Charles Chree. Refers to Henry Martyn Taylor, his eye problems and increasing blindness. Subject: Mathematics, Physics and Chemistry [Published in the 'Proceedings of the Royal Society of London', 1894] 18 July 1894