Formerly
Abstracts of the Papers Printed in the Philosophical Transactions of
the Royal Society of London (1832-1850),
Abstracts of the Papers Communicated to the Royal Society of London
(1851-1855). Under the present name since 1856.
Series A (Mathematical, Physical & Engineering Sciences) split off
in 1905. Not to be confused with
Philosophical Transactions of the Royal Society of London.