Scope and Contents Miscellaneous scientific works and correspondence on comparisons of Earth currents; the Australian telegraph; the Earth's axial wobble; various earthquakes, including the Sussex earthquake of 1864; a paper by G.P. Bond on a new form of the achromatic object-glass; T.W. Webb's paper on Dr Draper's telescope; observations of the spectra of stars from a balloon ascent by J. Glaisher; a French article by Camile Flammarion on spectral analysis from 'Le Siècle', 12 January 1866; 'Discrimination of...

Scope and Contents 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...