sum that the printing of a catalogue of the whole of such a library requires, to suit the convenience of a small portion of the community. There was much weight in the argument, and the propounder of it could not foresee that he would himself in the long run overthrow it by the extraordinary development he was destined to impart to the library, and by consequence to the catalogue. When, eight years after the date of the report just quoted, Panizzi's persevering efforts obtained an annual grant of £10,000 to remedy the deficiencies of the library, he started the catalogue on a road whose inevitable goal was print. Library and catalogue increasing pari passu, it became abundantly clear that recourse must some day be had to print for the mere sake of reducing the bulk of the latter. This consummation was accelerated by another of Panizzi's great measures the introduction, at the independent and almost simultaneous suggestion of Mr. Wilson Croker and the late Mr. Roy, of the Library, of the system of keeping up the catalogue by slips pasted on the leaf, and therefore easily removable, thus preventing the disturbance of alphabetical order. As this gave three thicknesses to the leaf, and the slips were at first pasted widely apart, and were not, moreover, transcribed with any special regard to economy of space, the hundred and fifty volumes placed in the Reading Room in 1850 had swollen to fifteen times that number by 1875. This development was attended by another unforeseen consequence; it became actually more expensive to
