Mr. Joseph P. Day of New York has again added to the collection of the Society, this time with an interesting assortment of three English books from the eighteenth century, and a fourth relating to the canal-building fever with which American cities were taken early in the nineteenth. The first item consists of two volumes of quotations on the London Stock Exchange, in 1725 and 1737. The earlier one is published by “John Castaing, Broker, at his Office at the Stationers, next the General-Post-Office in Lombard-Street”; the second by his widowed sister and another broker, Richard Shergold.