TY - JOUR T1 - On a Peculiar Class of Acoustical Figures; and on Certain Forms Assumed by Groups of Particles upon Vibrating Elastic Surfaces. JF - Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London (1800-1843) VL - 3 SP - 49 EP - 51 PY - 1830/01/01/ UR - http://dx.doi.org/10.1098/rspl.1830.0024 M3 - doi:10.1098/rspl.1830.0024 AU - Faraday, M. ER -