TY - JOUR T1 - On the Magnifying-Power of the Half-Prism as a Means of Obtaining Great Dispersion, and on the General Theory of the 'Half-Prism Spectroscope' JF - Proceedings of the Royal Society of London (1854-1905) VL - 26 SP - 8 EP - 40 PY - 1877/01/01/ UR - http://dx.doi.org/10.1098/rspl.1877.0004 M3 - doi:10.1098/rspl.1877.0004 AU - Christie, W. ER -