TY - JOUR T1 - On the Application of Glass as a Substitute for Metal Balance-Springs in Chronometers. JF - Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London (1800-1843) VL - 3 SP - 391 EP - 392 PY - 1830/01/01/ UR - http://dx.doi.org/10.1098/rspl.1830.0242 M3 - doi:10.1098/rspl.1830.0242 AU - Messrs. Arnold and Dent., . ER -