A - General Works 5,465 P - Language and Literature 215 H - Social Science 165 D - World History 98 M - Music 80 G - Geography, Anthropology, Recreation 56 T - Technology 46 R - Medicine 40 E - United States History 39 Q - Science 35 N - Fine Arts 34 S - Agriculture 34 B - Philosophy, Psychology, Religion 32 F - General American History 25 K - Law 15 J - Political Science 14 L - Education 13 U - Military Science 8 C - Historical Sciences 3 V - Naval Science 1 Z - Library Science 1