at 53 East 79th Street for the John S. Rogers family in 1917, in the firm's later years. Most of their buildings in the city were commercial, such as the B. Altman and Company Building and the St. Regis Hotel on Fifth Avenue, and the east wing of the American Museum of Natural History. The John S. Rogers House is considered a prime example of their residential work. The library is housed in a five-story, three-bay building faced in limestone. The main entrance at street level, behind a long awning, is flanked by two Doric pilasters supporting a horizontal lintel, set in rusticated stone. Above that story is a full-width balustrade. On the upper stories the stone is laid in an ashlar pattern with quoins at the corners. The second story windows are double glass doors topped with carved bracketed pediments (rounded in the center). Belt courses at sill level divide the stories. Above the fifth story the roofline is marked by a frieze and cornice topped by another balustrade. Behind it is a small terrace sheltered by a wide overhang. An end chimney rises from the gabled tile roof. The interior was extensively modified for the library in 1937. Much of this effort was focused on the rear; when it was completed, 39 rooms had been combined into 24. Original treatments remain, such as the coffered ceilings, stone walls and arched entryways on the first and second floors. The wood paneling and mantels in the card catalog room, second floor lounge and director's office is also original. Architectural historian Henry Hope Reed Jr. has described the main stairs as "the only [ones] in New York fit for a cardinal". Programs and collections Members pay an annual fee of $350 for a family, $335 for a couple, $270 for an individual to gain borrowing privileges and access to the upper floors, with two closed stacks, a members' lounge and exhibit hall. There's also a $100 e-membership which includes access to the digital collection and 10 building visits a year. Those fees and the library's endowment support a staff of 18 full-time and 26 part-time employees, supplemented by several volunteers and headed by director Carolyn Waters. The library acquires an average of 4,000 new volumes every year and subscribes to approximately 100 periodicals. The collection also includes a children's library and 10,000 volumes in its special collections. Foremost among these latter