A - General Works
234
B - Philosophy, Psychology, Religion
5,940
C - Historical Sciences
273
D - World History
2,797
E - United States History
316
F - General American History
2,702
G - Geography, Anthropology, Recreation
1,682
H - Social Science
10,530
J - Political Science
2,201
K - Law
6,947
L - Education
4,063
M - Music
650
N - Fine Arts
1,738
P - Language and Literature
15,345
Q - Science
3,033
R - Medicine
3,227
S - Agriculture
481
T - Technology
2,653
U - Military Science
159
V - Naval Science
57
Z - Library Science
519
TK - Electrical and Nuclear Engineering 391
T - General Technology 335
TA - General and Civil Engineering 317
TX - Home Economics 237
TD - Environmental Technology 208
TP - Chemical Technology 185
TH - Building Construction 183
TS - Manufactures 173
TJ - Mechanical Engineering and Machinery 170
TR - Photography 156
TT - Arts and Crafts 93
TL - Motor Vehicles and Aeronautics 84
TN - Mining Engineering and Metallurgy 41
TC - Hydraulic and Ocean Engineering 40
TE - Highway Engineering 22
TG - Bridge Engineering 12
TF - Railroad Engineering and Operation 6