A - General Works 48,010
B - Philosophy, Psychology, Religion 59,732
C - Historical Sciences 24,741
D - World History 40,834
E - United States History 14,854
F - General American History 39,714
G - Geography, Anthropology, Recreation 5,159
H - Social Science 41,680
J - Political Science 7,999
K - Law 14,134
L - Education 6,132
M - Music 166,195
N - Fine Arts 8,198
P - Language and Literature 793,823
Q - Science 33,602
R - Medicine 45,606
S - Agriculture 15,414
T - Technology 16,600
U - Military Science 1,249
V - Naval Science 361
Z - Library Science 6,104
QD - Chemistry 4,317
QC - Physics 4,124
QE - Geology 4,105
QA - Mathematics 3,944
QK - Botany 3,487
QL - Zoology 3,358
QH - Natural History and Biology 2,808
Q - General Science 2,663
QP - Physiology 2,337
QB - Astronomy 1,286
QR - Microbiology 804
QM - Human Anatomy 341