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 Correspondence and printed papers on astrology, chemistry, electricity, galvanism, geology, optics and squaring the circle. The correspondents include T. Andrews, W.H. Miller, W. De La Rue, W. Huggins, W. Klinkerfeus, J. Challis and L. Respighi. There are official printed reports on the Anglo-Australian Telegraph; specimens of output from printing telegraphy; a prospectus for a book titled 'Physical and historical evidences of vast sinkings of land on the North and West coasts of France and...

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...