“This image appeared on the cover of Scientific American on May 27, 1911 to celebrate the opening of the main branch of the New York Public Library on Fifth Avenue and 42nd Street. Printed on border: “The seven tiers of stacks in which many of the books of the New York Public Library are shelved. Elevators transfer the books to the room above as they are called for.” “See page 527.” From the NYPL Digital Gallery.” - × × ×