TY - JOUR T1 - Rules and Principles for Determining the Dispersive Ratio of Glass; and for Computing the Radii of Curvature for Achromatic Object-Glasses, Submitted to the Test of Experiment. JF - Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London (1800-1843) VL - 2 SP - 316 EP - 317 PY - 1815/01/01/ UR - http://dx.doi.org/10.1098/rspl.1815.0322 M3 - doi:10.1098/rspl.1815.0322 AU - Barlow, P. ER -