TY - JOUR T1 - On Some New Methods of Investigating the Sums of Several Classes of Infinite Series. JF - Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London (1800-1843) VL - 2 SP - 115 EP - 115 PY - 1815/01/01/ UR - http://dx.doi.org/10.1098/rspl.1815.0113 M3 - doi:10.1098/rspl.1815.0113 AU - Babbage, C. ER -