Classification
Q - Science
766
T - Technology
655
R - Medicine
638
H - Social Science
416
A - General Works
376
D - World History
347
S - Agriculture
312
B - Philosophy, Psychology, Religion
281
P - Language and Literature
228
M - Music
158
Z - Library Science
109
L - Education
97
G - Geography, Anthropology, Recreation
87
N - Fine Arts
71
J - Political Science
68
K - Law
57
E - United States History
32
F - General American History
32
U - Military Science
17
C - Historical Sciences
12
V - Naval Science
6