Library of Congress Call Number
R - Medicine
349
T - Technology
176
Q - Science
140
S - Agriculture
63
H - Social Science
47
G - Geography, Anthropology, Recreation
22
L - Education
12
U - Military Science
5
B - Philosophy, Psychology, Religion
2
D - World History
2
E - United States History
2
Z - Library Science
2
F - General American History
1
K - Law
1