Miscellaneous scientific works concerned with the appliance of photography to astronomy, including tables for the conversion of millionths of an atmosphere to millibars; a paper by R. Applegarth on the feasibility of public street lighting by electricity; a report on the extension of ocean telegraphs in South Australia; articles on the earthquake of 28 January 1878; inspection of Navy telescopes; notes on lamps for lighthouses; inequalities of angles of incidence and reflection illustrated by photographs; a diagram of a micrometer for use in solar photography; a paper by B.A. Gould on celestial photographs from Cordoba, Argentina; H. Draper's work on the discovery of oxygen in the Sun; a proposed new method in solar spectrum analysis by S.P. Langley; and observations of nebulae by W. Huggins. The correspondents include C.V. Walker, A.S. Herschel, R. Copeland, G.G. Stokes, J.H. Dallmayer, W. de W. Abney, W.H.M. Christie, A.C. Ranyard, H. Draper and H.W. Vogel.