Miscellaneous papers concerning astronomical matters, including letters from, among others, Sir D. Gill, Professor C. Pritchard, Lord Lindsay and Professor J. Challis. The subjects covered include solar parallax determined from observations of Mars, 1877, and the velocity of light; solar photographs; solar physics; a diagram of Jupiter; a newspaper article in French on the satellites of Mars; letters on Flamsteed's observations; a theory of the solar system; a plan for disseminating astronomical information; the Gresham Lectures, 1879; and correspondence on other subjects relating to astronomy.