The spirit of knowledge which has created in the United States such a demand for libraries has been happily supplemented by a spirit of liberality. Nowhere in the world have there risen so many and such munificent donors of means to found and support libraries. Without appearing invidious, mention may well be made of some of these munificent givers and founders. Conspicuous among them is John Jacob Astor, founder of the Astor Library in New York City, with its splendid endowment fund of $1,100,000; James Lenox, who founded the Lenox Library of New York City, and invested in buildings and endowment $1,247,000; George Peabody, who founded, in 1857, at Baltimore, the Peabody Institute and Library, with an endowment of $1,000,000; Walter L. Newberry, of Chicago, who, in 1889, left $2,000,000 to found a free public library in the northern part of the city; John Crerar, of Chicago, who left an immense estate to found and endow the Crerar Library; Enoch Pratt, of Baltimore, who gave $1,150,000 to found the Enoch Pratt Free Library; Dr. James Rush, of Philadelphia, who left, in 1869, a bequest of over $1,000,000 to form the Ridgway Branch of the Philadelphia Library; Andrew Carnegie, who founded the Pittsburgh Free Library and several others in different places. The century’s progress in library management has kept pace with the growth of volumes. Cataloguing and arranging of books have been reduced to a science. Training of librarians and of students in the use of books has become an educational course in many higher institutions of learning. Library architecture and the numerous appliances for distributing books or rendering them accessible on the shelves, have all been improved, so that the library of the end of the century is as much a seductive retreat as a world of knowledge. PROGRESS OF THE CENTURY IN ARCHITECTURE BY WILLIAM MARTIN AIKEN, F.A.I.A., _Former U. S. Supervising Architect_. Towards the close of the last century there arose in England a decided fashion for Greek columns and pediments, which was brought about by the publication in 1762 of the discoveries by Stuart and Revett at Athens, and was still further stimulated by the bringing to England of the Elgin marbles in 1801, so that every building of any importance, whether church or school or country residence, had its portico with Doric, Ionic, or Corinthian columns. Thus began the Greek revival; then followed the more slender columns, with arches and vaults, of the Roman; and to these were very shortly added the cupola or the dome and the balustrade of the Renaissance.