George Grote to G. C. Lewis, 9 February 1862: 'I ought before this to have written to thank you for your book of Ancient Astronomy. But I delayed doing so until I had read the book through; and having now done so, I can perform the task with more satisfaction. I can say, without the least exaggeration, that it is a truly useful and instructive exposition [...] You deserve every compliment for the example which you set of always producing authorities and giving copious references. 'Your chapters on the AEgyptian [sic] and Assyrian interpretations are also exceedingly valuable. I never knew so much about the Egyptian [sic] matters before.'