CLASSIFICATION
H - Social Science
1,526
R - Medicine
1,063
Q - Science
980
T - Technology
802
L - Education
315
S - Agriculture
171
G - Geography, Anthropology, Recreation
134
J - Political Science
125
P - Language and Literature
108
D - World History
102
K - Law
98
B - Philosophy, Psychology, Religion
77
Z - Library Science
55
M - Music
35
N - Fine Arts
27
C - Historical Sciences
18
U - Military Science
9
E - United States History
8
A - General Works
7
F - General American History
5
V - Naval Science
2