Classification
P - Language and Literature
11,067
H - Social Science
582
Q - Science
505
K - Law
358
D - World History
307
B - Philosophy, Psychology, Religion
305
J - Political Science
224
T - Technology
107
G - Geography, Anthropology, Recreation
51
N - Fine Arts
48
R - Medicine
37
L - Education
34
S - Agriculture
28
F - General American History
21
M - Music
20
C - Historical Sciences
17
A - General Works
15
Z - Library Science
15
U - Military Science
12
E - United States History
5
V - Naval Science
3