36,685 18,771 43,836 22,127 49,385 1,675 7,896 1,591 24,582 53,797 7,001 2,042 26,618 Music * Art, etc- Science 991 2,779 1,032 3,149 1,181 3,412 1,401 3,605 1,386 3,685 1,294 3,335 16,252 45,574 Economics, including 1,467 15,709 Patents * 1,011 15,165 Technology 5,371 19,209 4,925 24,497 5,402 19,207 5,378 19,200 5,692 25,614 6,107 22,205 72,932 274,485 NOTE: General periodicals (* D) are included under American and English Literature and comprised 51,954 volumes of the total consulted in this class (141,993), and 8.3 per cent. of all books used in the Main Reading Room. |