Classification
T - Technology
435
H - Social Science
355
S - Agriculture
337
Q - Science
285
R - Medicine
247
A - General Works
74
K - Law
74
L - Education
72
M - Music
43
D - World History
36
Z - Library Science
29
J - Political Science
26
G - Geography, Anthropology, Recreation
19
B - Philosophy, Psychology, Religion
15
P - Language and Literature
14
N - Fine Arts
10
C - Historical Sciences
4
E - United States History
4
V - Naval Science
2
U - Military Science
1