B - Philosophy, Psychology, Religion 52 T - Technology 46 K - Law 29 M - Music 28 A - General Works 14 C - Historical Sciences 11 P - Language and Literature 7 D - World History 6 S - Agriculture 6 R - Medicine 2 F - General American History 1 G - Geography, Anthropology, Recreation 1 L - Education 1 N - Fine Arts 1